Subduction au Japon.kmz

Subduction au Japon
Dossier réalisé pour Eduterre- IFE
par Marie-José Broussaud .
Cette création est mise à disposition sous un contrat Creative Commons.

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Informations techniques à respecter :
1) - Surtout ne pas cocher la case qui est devant un dossier mais ouvrir le dossier en cliquant sur le triangle noir, qui est placé devant le nom.
Dossier fermé : Dossier ouvert :
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- Deux clics permettent de se rendre au lieu désiré.
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5) Pour tracer le profil topographique :
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- cliquer avec le bouton gauche afin de tracer une ligne correspondant au profil souhaité.
- Enregistrer, mettre un titre par exemple "Profil topographique" et dans l'onglet altitude sélectionner "au niveau des fonds marins". Faire "OK"
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- zoomer un maximum pour obtenir plus de détails.
6) Au fur et à mesure, décocher les données non utilisées
7) Après chaque vision 3D se remettre à plat en utilisant le contrôle de navigation.
Attention!
- ne jamais perdre le Nord
- pour voir le relief, 2 possibilités :
a) Enfoncer la touche "shift" et avec la molette de la souris changer l'angle de vision
b) Utiliser les contrôles de navigation.
- En bas de certaines pages, ne pas tenir compte de :
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Tutoriel :

Tracé AB
Pour afficher le profil topographique, cliquer sur le trait de coupe avec le bouton droit de la souris puis sur "Afficher le profil d'élévation".

Coupe AB

Carte géologique (Asie)
Earth continental geology by Era
G.C Herman, Rev. March 2014
http://www.impacttectonics.org/Earth/Geology_KML.html
The Earth_continental geology by Era kmz file (802KB) references a set of tiled GIF imagery representing Earths continental geology colored by geological era and grayshade sea-floor imagery compiled by the US Geological Survey.

Volcans
Cliquer sur les volcans pour obtenir des informations
Programme global volcanique de Smithsonian Institution

Taiwan

Unnamed
East of Taiwan
Volcano types:
Submarine volcano
Latitude: 24.00°N
Longitude: 121.83°E
A submarine eruption observed by the U.S. Navy boat "Southampton" took place on October 29, 1853 in the Philippine Sea offshore from the city of Hualien about 18 km from the eastern coast of Taiwan. Several days later another ship, the "Macedonian," passed the same location and reported white ash covering its curtains.
About Volcano Data |
Smithsonian Volcano Information

Kueishantao
East of Taiwan
Volcano types:
Stratovolcano
Summit Elev: 401 m
Latitude: 24.85°N
Longitude: 121.92°E
Kueishantao Island, whose summit is 401 m above sea level, is the southernmost of five small volcanic islands off the NE coast of Taiwan. Kueishantao, also known as Guieshan Island, consists of andesitic lava flows and volcaniclastic material. Kueishantao is the southwesternmost volcano along the axis of the Okinawa Trough back-arc basin that extends to the NE from Taiwan to Unzen volcano in Kyushu. The SW tip of the Okinawa Trough extends past Kueishantao onto the Ilao Plain on the island of Taiwan. The island is known as "Turtle Mountain Island" due to its profile as seen from some points on the coast of Taiwan. Historical accounts during the time of King Qianlong of the Qing Dynasty (1775-1795 AD) noted the Guieshan mountain split open with a blood-red lava flow. Kueishantao displays vigorous active submarine fumaroles and solfataras that discolor seawater over wide areas.
About Volcano Data | Larger photo with caption and credit.
Smithsonian Volcano Information

Tatun Group
Taiwan
Volcano types:
Stratovolcanoes
Summit Elev: 1120 m
Latitude: 25.17°N
Longitude: 121.52°E
The Tatun (Datun) volcano group is a series of andesitic stratovolcanoes and lava domes in the northernmost part of Taiwan. About 20 volcanoes, the southernmost of which is only 15 km north of the capital city of Taipei, are included in the Tatun group. The highest and youngest volcano is 1120-m-high Chisingshan. The latest dated eruptions in the group took place over a roughly 3000-year period beginning about 20,000 years ago. Hot springs, fumaroles, and solfataras are found over wide areas, and extensive geothermal exploration has occurred at the Daiton geothermal area.
About Volcano Data | Larger photo with caption and credit.
Smithsonian Volcano Information

Pengchiahsu
North of Taiwan
Stratovolcano
Summit Elev: 129 m
Pengchiahsu is one of five small Pleistocene volcanic islands NE of Taiwan. The summit of andesitic Pengchiahsu island (also known as Agincourt) reaches only 129 m above sea level. The age of volcanism is considered to be Pleistocene, but Pengchiahsu displays fumarolic activity (Volcanological Society of Japan, 1971).
About Volcano Data |

Ryukyu Islands & Kyushu

Iriomote-jima
Ryukyu Islands (Japan)
Submarine volcano
Summit Elev: -200 m
The southernmost Ryukyu Islands volcano is a shallow submarine volcano north of Iriomote-jima island. The submarine volcano is located 25 km NNE of the NE tip of Iriomote-jima and 35 km WSW of the northern tip of the island of Ishigaki-shima in an area with an estimated depth of 200-300 m. A major submarine eruption took place at this volcano on October 31, 1924. It produced rhyolitic pumice rafts with an estimated volume of about 1 cu km that were carried by currents along both coasts of Japan as far north as Hokkaido. The largest pumice blocks exceeded 1 x 2 m in size, and the volume of ejecta places this poorly known eruption among the largest in historical time in Japan.
About Volcano Data | Larger photo with caption and credit.
Smithsonian Volcano Information | Japan Meteorological Agency | Geological Survey of Japan

Iwo-Tori-shima
Ryukyu Islands (Japan)
Complex volcano
The 1 x 2.7 km island of Iwo-Tori-shima (also known as Okinawa-Tori-shima), located north of the largest island of the Ryukyus, Okinawa, is composed of two andesitic volcanoes. Tori-shima (Bird Island) is a common name for offshore islands in Japan. Kusuku lava dome occupies the center of the inner of two sommas on the SE-most volcano. The summit crater of the NW-most volcano, Iwo-dake, contains a small lake, solfataras, and sulfur deposits that were mined in the past. Historical eruptions dating back to 1664 have consisted of mild-to-moderate explosive activity.
Smithsonian Volcano Information | Japan Meteorological Agency | Geological Survey of Japan

Yokoate-jima
Ryukyu Islands (Japan)
Stratovolcanoes
Caldera
Yokoate-jima is a small, 3.5-km-long, dumbbell-shaped island NW of Amami Oshima Island at the SW end of the Tokara island chain. Two peaks, Higashimine on the east and Nishimine on the west, form the andesitic island. The 495-m-high Higashimine, the high point of the island, has a steep-walled, well-preserved summit crater. An arcuate ridge east of Yokoate-jima appears to be part of 7 x 10 km wide submarine caldera, with Yokoate-jima and Kannone-jima (NNE of Yokoate-jima) being post-caldera cones (Nakano et al., 2001-). Yokoate-sho (Yokoate Reef) and Kannone Kaikyu (Kannone Knoll) lie to NNW and NE of Yokoate-jima, respectively. Historical documents at the end of the Edo Period mention ash plumes from Yokoate-jima.
Smithsonian Volcano Information | Japan Meteorological Agency | Geological Survey of Japan

Akuseki-jima
Stratovolcanoes
Lava dome
Akuseki-jima is a small, 584-m-high stratovolcano in the southern Ryukyu Islands that rises about 800 above the sea floor. Most of the island is surrounded by steep cliffs, and beaches are found only on the SW and SE sides. The andesitic-dacitic volcano consists of two older somma volcanoes, Biro-yama and Naka-dake. Mi-take lava dome forms the high point of the small 2.5 x 3.2 km wide island. The dacitic Omune lava flow on the NE flank was Potassium-Argon dated at <80,000 yrs Before Present, and its youthful morphology and lack of overlying tephra layers suggests it could be as young as the Holocene (Furuyama et al., 2002). The lava flow, the youngest product of Akuseki-jima volcano, forms a low-angle plateau overlying cliffs forming the northern coast.

Suwanose-jima
Pyroclastic cones
Fissure vents
The 8-km-long, spindle-shaped island of Suwanose-jima in the northern Ryukyu Islands consists of an andesitic stratovolcano with two historically active summit craters. Only about 50 persons live on the sparsely populated island. The summit of the volcano is truncated by a large breached crater extending to the sea on the east flank that was formed by edifice collapse. Suwanose-jima, one of Japan's most frequently active volcanoes, was in a state of intermittent strombolian activity from On-take (Otake), the NE summit crater, that began in 1949 and lasted until 1996, after which periods of inactivity lengthened. The largest historical eruption took place in 1813-14, when thick scoria deposits blanketed residential areas, and the SW crater produced two lava flows that reached the western coast. At the end of the eruption the summit of On-take collapsed forming a large debris avalanche and creating the horseshoe-shaped Sakuchi caldera, which extends to the eastern coast. The island remained uninhabited for about 70 years after the 1813-1814 eruption. Lava flows reached the eastern coast of the island in 1884.

Nakano-shima
The 9 x 5 km island of Nakano-shima is surrounded by coral reefs. A flat plateau separates an older dissected volcano on the south from the active andesitic cone of On-take, which forms the northern half of the island. On-take contains a summit crater that is filled with water during the rainy season. Sulfur deposits were mined at a SE-flank solfatara until 1944. Only very minor activity has been reported in historical time. A small mud eruption took place in 1914 at the summit crater, and "smoking" increased in 1949.

Kogaja-jima
Lava domes
Kogaja-jima is a small volcanic island located NW of Nakano-shima. The andesitic lava domes were considered to be of late-Pleistocene to Holocene age (Nakano et al., 2001-). Kogaja-jima (Little Gaja Island) lies ESE of the larger Gaja-jima stratovolcano. The 301-m-high Kogaja-jima volcano displays minor fumarolic activity exposed in coastal cliffs.

Gaja-jima
Stratovolcano
Gaja-jima volcano lies east of the main arc Ryukyu arc, WNW of Nakano-shima. The andesitic stratovolcano reaches 497 m above sea level. The age of the volcano is not known precisely and Gaja-jima was considered to be of late-Pleistocene to Holocene age (Nakano et al., 2001-). Kogaja-jima (Little Gaja Island) lies ESE of Gaja-jima.

Kuchino-shima
Lava domes
Kuchino-shima, lying in the northern Ryukyu Islands between the volcanic islands of Nakano-shima and Kuchinoerabu-jima, consists of two andesitic stratovolcanoes and a NW-SE-trending chain of lava domes. Two small villages, Nishinohama and Kuchino-shima, lie at the northern end of the mostly uninhabited island. The compound 628-m-high Mae-dake lava dome, forming the highest point on the 3 x 7 km wide island, was constructed east of the summit of 501-m-high Yoko-dake stratovolcano. The last magmatic eruption at Kuchino-shima took place about 1200-1300 years ago.

Kuchinoerabu-jima
Pyroclastic cones
A group of young stratovolcanoes forms the eastern end of the irregularly shaped island of Kuchinoerabu-jima in the northern Ryukyus, 15 km west of Yaku-shima. Furu-take, Shin-take, and Noike were erupted from south to north, respectively, to form a composite cone that is parallel to the trend of the Ryukyu Islands. The highest peak, Furu-take, reaches only 657 m above sea level. The youngest cone, 640-m-high Shin-take, was formed after the NW side of Furu-take was breached by an explosion. All historical eruptions have occurred from Shin-take, although a lava flow from the south flank of Furu-take that reached the coast has a very fresh morphology. Frequent explosive eruptions have taken place from Shin-take since 1840; the largest of these was in December 1933. Several villages on the 4 x 12 km island are located within a few km of the active crater of Shin-take and have suffered damage from eruptions.

Kikai
Caldera
Lava domes
Kikai is a mostly submerged, 19-km-wide caldera near the northern end of the Ryukyu Islands south of Kyushu. Kikai was the source of one of the world's largest Holocene eruptions about 6300 years ago. Rhyolitic pyroclastic flows traveled across the sea for a total distance of 100 km to southern Kyushu, and ashfall reached the northernmost Japanese island of Hokkaido. The eruption devastated southern and central Kyushu, which remained uninhabited for several centuries. Post-caldera eruptions formed Iwo-dake lava dome and Inamura-dake scoria cone, as well as submarine lava domes. Historical eruptions have occurred in the 20th century at or near Tokara-Iwo-Jima (also known as Satsuma-Iwo-jima), a small 3 x 6 km island forming part of the NW caldera rim. Showa-Iwo-jima lava dome (also known as Iwo-jima-Shinto), a small island 2 km east of Tokara-Iwo-jima, was formed during submarine eruptions in 1934 and 1935. Mild-to-moderate explosive eruptions have occurred during the past few decades from Iwo-dake, a rhyolitic lava dome at the eastern end of Tokara-Iwo-jima.

Ibusuki Volcanic Field
Kyushu
Calderas
Ibusuki volcanic field at the southern tip of Kyushu consists of numerous central cones and maars, the 4.5-km-wide Ikeda-ko caldera, and Kaimon-dake stratovolcano. The symmetrical, 922-m-high andesitic Kaimon-dake is the most prominent feature of the volcanic field and is capped by a lava dome. The large Pleistocene Ata caldera, once thought to partially underlie the Ibusuki volcanic field, is now considered to be located farther to the east beneath Kagoshima Bay. Ibusuki Volcanic Field has been very active during the Holocene, forming the Ikeda-ko caldera about 4600 years ago, numerous maars and lava domes, and, during the last 4000 years, Kaimon-dake. After about 2650 years ago, all eruptive activity has been restricted to Kaimon-dake. Its last eruption took place in the 9th century.

Sakura-jima
Kyushu
Pyroclastic cones
Sakura-jima, one of Japan's most active volcanoes, is a post-caldera cone of the Aira caldera at the northern half of Kagoshima Bay. Eruption of the voluminous Ito pyroclastic flow accompanied formation of the 17 x 23 km wide Aira caldera about 22,000 years ago. The smaller Wakamiko caldera was formed during the early Holocene in the NE corner of the Aira caldera, along with several post-caldera cones. The construction of Sakura-jima began about 13,000 years ago on the southern rim of Aira caldera and built an island that was finally joined to the Osumi Peninsula during the major explosive and effusive eruption of 1914. Activity at the Kita-dake summit cone ended about 4850 years ago, after which eruptions took place at Minami-dake. Frequent historical eruptions, recorded since the 8th century, have deposited ash on Kagoshima, one of Kyushu's largest cities, located across Kagoshima Bay only 8 km from the summit. The largest historical eruption took place during 1471-76.
Smithsonian Volcano Information | Sakurajima Volcano Observatory | Geological Survey of Japan

Sumiyoshi-ike
Kyushu
Maars
Sumiyoshi-ike and Yonemaru are two basaltic maars formed in coastal lowland deposits north of the Aira caldera. The eruptions occurred during a period of rising sea level at the beginning of the Holocene. The 500-m-wide Sumiyoshi-ike maar was created about 7000 years ago. The larger, 1.2-km-wide Yonemaru maar erupted about 2 km west of Sumiyoshi-ike about 6500 years ago and produced pyroclastic surges that traveled 4 km from the vent.

Kirishima
Shield volcano
Cinder cones
Kirishima is a large group of more than 20 Quaternary volcanoes located north of Kagoshima Bay. The late-Pleistocene to Holocene dominantly andesitic volcano group consists of stratovolcanoes, pyroclastic cones, maars, and underlying shield volcanoes located over an area of 20 x 30 km. The larger stratovolcanoes are scattered throughout the field, with the centrally located, 1700-m-high Karakuni-dake being the highest. Onami-ike and Mi-ike, the two largest maars, are located SW of Karakuni-dake and at its far eastern end, respectively. Holocene eruptions have been concentrated along an E-W line of vents from Mi-ike to Ohachi, and at Shinmoe-dake to the NE. Frequent small-to-moderate explosive eruptions have been recorded since the 8th century.
Smithsonian Volcano Information | Kirishima Volcano Observatory | Geological Survey of Japan

Fukue-jima
Shield volcanoes
Cinder cones
A group of small olivine basaltic shield volcanoes and cinder cones lies at the eastern end of Fukue-jima in the Goto Islands off the western coast of Kyushu. Activity at the Fukue volcano group began about 900,000 years ago, and the latest activity took place about 2000-3000 years ago (Nakano et al., 2001-). The volcano group is one of the active volcanoes monitored by the Japan Meteorological Agency. The volcanic field, whose high point (On-dake cinder cone) is only 317 m above sea level, forms peninsulas at the eastern and SE tips of Fukue Island as well as several smaller islands SE of Fukue.

Unzen
Complex volcano
The massive Unzen volcanic complex comprises much of the Shimabara Peninsula east of the city of Nagasaki. A 30-40-km-long, E-W-trending graben extends across the peninsula. Three large stratovolcanoes with complex structures, Kinugasa on the north, Fugen-dake at the east-center, and Kusenbu on the south, form topographic highs on the broad peninsula. Fugen-dake and Mayu-yama volcanoes in the east-central portion of the andesitic-to-dacitic Unzen volcanic complex have been active during the Holocene. The Mayu-yama lava dome complex, located along the eastern coast west of Shimabara City, formed about 4000 years ago and was the source of a devastating 1792 AD debris avalanche and tsunami. Historical eruptive activity has been restricted to the summit and flanks of Fugen-dake. The latest activity during 1990-95 formed a lava dome at the summit, accompanied by pyroclastic flows that caused fatalities and damaged populated areas near Shimabara City.
Smithsonian Volcano Information | Shimabara Earthquake and Volcano Observatory | Geological Survey of Japan

Aso
Caldera
Cinder cones
The 24-km-wide Aso caldera was formed during four major explosive eruptions from 300,000 to 90,000 years ago. These produced voluminous pyroclastic flows that covered much of Kyushu. The last of these, the Aso-4 eruption, produced more than 600 cu km of airfall tephra and pyroclastic-flow deposits. A group of 17 central cones was constructed in the middle of the caldera, one of which, Naka-dake, is one of Japan's most active volcanoes. It was the location of Japan's first documented historical eruption in 553 AD. The Naka-dake complex has remained active throughout the Holocene. Several other cones have been active during the Holocene, including the Kometsuka scoria cone as recently as about 210 AD. Historical eruptions have largely consisted of basaltic to basaltic-andesite ash emission with periodic strombolian and phreatomagmatic activity. The summit crater of Naka-dake is accessible by toll road and cable car, and is one of Kyushu's most popular tourist destinations.
Smithsonian Volcano Information | Aso Volcanological Laboratory | Geological Survey of Japan

Kuju
Kuju volcano is a complex of stratovolcanoes and lava domes lying NE of Aso caldera in north-central Kyushu. The Kuju volcano group consists of 16 andesitic lava domes, five andesitic stratovolcanoes, and one basaltic cone. Activity at the Kuju group dates back to about 150,000 years. Six major andesitic-to-dacitic tephra deposits, many associated with the growth of lava domes, have been recorded during the Holocene. Eruptive activity has migrated systematically eastward during the past 5000 years. The latest magmatic activity occurred about 1600 years ago, when Kuro-dake lava dome at the eastern end of the complex was formed. The first reports of historical eruptions were in the 17th and 18th centuries, when phreatic or hydrothermal activity occurred. Many hot springs and hydrothermal fields are located at the Kuju complex. A fumarole on Hosho lava dome was the site of a sulfur mine for at least 500 years. Two geothermal power plants are in operation at Kuju.

Tsurumi
The Tsurumi lava dome complex rises above the noted hot spring resort city of Beppu on Japan's Inland Sea. Two large lava domes, Tsurumi and Yufu, are located at the east and west sides of the complex, respectively. Three smaller lava domes are located on the north flank of the Tsurumi dome. The latest activity at both the andesitic-to-dacitic Tsurumi and Yufu groups postdates the 6300-years-old Akahoya ash from Kikai volcano. Pyroclastic flows dominated during older eruptions, whereas lava domes and lava flows are most common in more recent eruptions. An eruption about 2200 years ago from Yufu-dake volcano began with collapse of the northern flank that produced a debris avalanche and was followed by lava dome growth and associated pyroclastic flows. Only a single eruption, from Tsurumi in 867 AD, is known in historical time. The colorful hot spring pools and mudpots of Beppu along the coast form one of Japan's most noted thermal areas.

Honshu

Abu
Honshu
Shield volcanoes
The Abu volcano group, located along the Japan Sea coast near the SW end of Honshu, consists of basaltic-to-dacitic lava flows, small shield volcanoes (some of which have associated cinder cones) and lava domes. More than 40 monogenetic volcanoes are located in area of 400 sq km. Irao-yama at 641 m forms the high point of this group of small volcanic edifices, some of which form offshore islands. Volcanism here is considered to be related to subduction of the Philippine Sea Plate. An earlier phase of activity at the dominantly Pleistocene Abu volcano group during the late-Pliocene to early Pleistocene was followed by renewed activity about 800,000 years ago that continued into the Holocene. The latest dated eruption took place about 3400 years ago.

Sanbe
Honshu
Pyroclastic cone
Sanbe stratovolcano in SW Honshu, along the Japan Sea coast, is also known as Sambe volcano. The summit of Sanbe is cut by a small caldera about 1 km in diameter. The highest point on the dacitic-to-andesitic volcano is 1126-m-high O-Sanbe, at the northern end of the complex. Sanbe has had several large explosive eruptions during the Pleistocene and one strong Holocene eruption from Taihei-zan lava dome about 3700 years ago. This eruption was accompanied by pyroclastic flows that swept down the NE-to-SE flanks and traveled 9 km down the Hayamizu River to the SW. Younger, undated eruptions have also occurred (Machida and Arai, 1992).

Oki-Dogo
West of Honshu (Japan)
Shield volcano
Cinder cone
The Oki-Dogo islands, north of the SW Honshu city of Matsue, are one of several locations of Holocene volcanism on islands of the Japan Sea off the west coast of Japan. The Oki-Dogo islands are largely Pleistocene in age, and dated rocks range from about 800,000 to 300,000 years old. Tomita (1969) described a shield volcano and cinder cone that have produced Holocene basalts. The alkaline basalts on Oki-Dogo are related to the opening of the Japan Sea and contain abundant mantle-derived xenoliths. The Daimanji-san lava flow overlies alluvial gravel containing an ancient water-jar. The name Takuhi-yama ("Burning Mountain") may record a tradition of an eruption.

Izu-Tobu
Submarine volcanoes
The Izu-Tobu volcano group (Higashi-Izu volcano group) is scattered over a broad, plateau-like area of more than 400 sq km on the east side of the Izu Peninsula. Construction of several stratovolcanoes continued throughout much of the Pleistocene and overlapped with growth of smaller monogenetic volcanoes beginning about 300,000 years ago. About 70 subaerial monogenetic volcanoes formed during the last 140,000 years, and chemically similar submarine cones are located offshore. These volcanoes are located on a basement of late-Tertiary volcanic rocks and related sediments and on the flanks of three Quaternary stratovolcanoes: Amagi, Tenshi, and Usami. Some eruptive vents are controlled by NW-SE- or NE-SW-trending fissure systems. Thirteen eruptive episodes have been documented during the past 32,000 years. Kawagodaira maar produced pyroclastic flows during the largest Holocene eruption about 3000 years ago. The latest eruption occurred in 1989, when a small submarine crater was formed NE of Ito City.

Hakone
Complex volcano
Calderas
Hakone volcano is truncated by two overlapping calderas, the largest of which is 10 x 11 km wide. The calderas were formed as a result of two major explosive eruptions about 180,000 and 49,000-60,000 years ago. Scenic Lake Ashi lies between the SW caldera wall and a half dozen post-caldera lava domes that were constructed along a SW-NE trend cutting through the center of the calderas. Dome growth occurred progressively to the south, and the largest and youngest of these, Kami-yama, forms the high point of Hakone. The calderas are breached to the east by the Haya-kawa canyon. A phreatic explosion about 3000 years ago was followed by collapse of the NW side of Kami-yama, damming the Haya-kawa valley and creating Lake Ashi. The latest magmatic eruptive activity at Hakone about 2900 years ago produced a pyroclastic flow and a lava dome in the explosion crater, although phreatic eruptions took place as recently as the 12-13th centuries AD. Seismic swarms have occurred at Hakone during the 20th century. Lake Ashi, along with major thermal areas in the caldera, forms a popular resort area SW of Tokyo.

Fuji
The conical form of Fuji-san, Japan's highest and most noted volcano, belies its complex origin. The modern postglacial stratovolcano is constructed above a group of overlapping volcanoes, remnants of which form irregularities on Fuji's profile. Growth of the Younger Fuji volcano began with a period of voluminous lava flows from 11,000 to 8000 years before present (BP), accounting for four-fifths of the volume of the Younger Fuji volcano. Minor explosive eruptions dominated activity from 8000 to 4500 BP, with another period of major lava flows occurring from 4500 to 3000 BP. Subsequently, intermittent major explosive eruptions occurred, with subordinate lava flows and small pyroclastic flows. Summit eruptions dominated from 3000 to 2000 BP, after which flank vents were active. The extensive basaltic lava flows from the summit and some of the more than 100 flank cones and vents blocked drainages against the Tertiary Misaka Mountains on the north side of the volcano, forming the Fuji Five Lakes, popular resort destinations. The last confirmed eruption of this dominantly basaltic volcano in 1707 was Fuji's largest during historical time. It deposited ash on Edo (Tokyo) and formed a large new crater on the east flank.

Kita Yatsuga-take
Kita-Yatsuga-take (North Yatsuga-take) is a group of stratovolcanoes and lava domes at the NW end of the NNW-SSE-trending Yatsuga-take volcanic massif. The basaltic-to-dacitic Kita Yatsuga-take volcanic group contains the Tateshina, Yoko-dake, Shimagare-yama, Chausu-yama and Futago-mine volcanoes. Tateshina-yama is sometimes known as Suwa Fuji because of its conical profile. A large lava flow forms the Tateshina-kogen plateau south of Tateshina and Yoko-dake volcanoes. A debris avalanche from edifice collapse in 888 AD created Matsubara Lake on the east side of the massif. Yoko-dake lava dome, capped by eight small craters, has been active into the Holocene. The most recent eruption took place about 800 years ago, when ash emission accompanied emplacement of a small lava flow.

On-take
The massive On-take stratovolcano, the second highest volcano in Japan, lies at the southern end of the Northern Japan Alps. On-take is constructed within a largely buried 4 x 5 km caldera and occupies the southern end of the Norikura volcanic zone, which extends northward through Norikura volcano to Yake-dake volcano. The older volcanic complex consisted of at least four major stratovolcanoes constructed from about 680,000 to about 420,000 years ago, after which On-take was inactive for more than 300,000 years. The broad, elongated summit of the younger edifice is cut by a series of small explosion craters along a NNE-trending line. Several phreatic eruptions from On-take post-date the roughly 7300-year-old Akahoya tephra from Kikai caldera. On-take's first historical eruption took place in 1979. A non-eruptive landslide in 1984 produced a debris avalanche and lahar that swept down valleys south and east of the volcano. Ascent of the 3063-m-high On-take is one of the major objects of religious pilgrimage in central Japan.

Haku-san
Haku-san, along with Fuji-san and On-take, is one of Japan's three most sacred mountains. It is a complex andesitic-dacitic stratovolcano overlooking the Japan Sea. The 2702-m-high Haku-san was constructed over a high basement of sedimentary rocks in a region of very heavy snowfall that has contributed to erosional dissection. Holocene eruptions have consisted of phreatic or phreatomagmatic explosions from several summit craters. Partial collapse of the summit produced a debris avalanche down the east flank during the mid-Holocene. Historical eruptions were recorded over almost a thousand-year period until the 17th century.

Norikura
Lava dome
Norikura volcano consists of an elongated group of small andesitic stratovolcanoes and craters arranged along a N-S line above a ridge crest in the southern part of the Northern Japan Alps. The 3026-m-high andesitic-to-dacitic volcano is the third highest in Japan and lies at the center of the Norikura volcanic zone extending from Yake-dake on the north to On-take on the south. Early eruptions occurred at both the northern and southern ends of the present-day volcano, forming stratovolcanoes that have been largely buried by later southward-migrating eruptions. Norilura-ake was active during the early Holocene, and the last eruption took place about 2000 years ago.

Yake-dake
Yake-dake rises above the popular resort of Kamikochi in the Northern Japan Alps. The small dominantly andesitic stratovolcano, one of several Japanese volcanoes named Yake-dake or Yake-yama ("Burning Peak" or "Burning Mountain"), was constructed astride a N-S-trending ridge between the older volcanoes of Warudani-yama and Shiratani-yama. Akandana-yama, about 4 km SSW of Yake-dake, is a stratovolcano with lava domes that was active into the Holocene. A 300-m-wide crater is located the summit of Yake-dake, and explosion craters are found on the SE and northern flanks. Frequent small-to-moderate phreatic eruptions have occurred during the 20th century. On February 11, 1995, a hydrothermal explosion in a geothermal area killed two persons at a highway construction site.

Washiba-Kumonotaira
Shield volcanoes
Lava domes ?
The Washiba-Kumonotaira volcano group consists of a cluster of small shield volcanoes with possible lava domes in a remote area in the heart of the Northern Japan Alps. A tephra layer consisting of accretionary lapilli and fresh volcanic bombs that originated from the Washiba-ike explosion crater overlies the 6300-year-old Akahoya Ash from Kikai volcano. The Washiba-ike tephra is considered to have an approximate age of about 4000 BC (Hayakawa 1996, pers. comm.).

Tate-yama
Caldera (erosion)
Explosion craters
Tate-yama volcano is a dissected andesitic-to-dacitic stratovolcano on a plateau surrounded by high peaks of the North Japan Alps. Tate-yama is named for the granite-and-gneiss peak of Tate-yama, which lies immediately to the east. Formation of a 4-km-wide erosional caldera was followed by repeated eruptions of lava and pyroclastics forming the Midagahara plateau that was later dissected by the Yu-kawa river. Holocene eruptions have been restricted to small phreatic explosions that formed craters. A minor historical eruption occurred in the 19th century. An earthquake swarm took place in 1990. Hot springs occur in seven locations on the floor of the poorly defined erosional caldera.

Niigata-Yake-yama
Lava dome
Explosion craters
Niigata-Yake-yama, one of several Japanese volcanoes named Yake-yama ("Burning Mountain"), is a very young andesitic-to-dacitic lava dome in Niigata prefecture in central Honshu, near the Japan Sea. The small volcano rises to 2400 m and was constructed on a base of Tertiary mountains 2000 m high beginning about 3100 years ago. Three major magmatic eruptions took place in historical time, producing pyroclastic flows and surges and lava flows that traveled mainly down the Hayakawa river valley to the north and NW. The first of these eruptions took place about 1000 years ago (in 887 and possibly 989 AD) and produced the Hayakawa pyroclastic flow, which traveled about 20 km to reach the Japan Sea, and the massive Mae-yama lava flow, which traveled about 6.5 km down the Hayakawa river valley. The summit lava dome was emplaced during the 1361 eruption, and the last magmatic eruption took place in 1773 AD. Eruptive activity since 1773 has consisted of relatively minor phreatic explosions from several radial fissures and explosion craters that cut the summit and flanks of the dome.

Myoko
Myoko is a steep-sided stratovolcano north of Nagano City that overlooks the popular resort of Lake Nojiri below its SE flank. A 3-km-wide caldera breached widely to the east is filled by a flat-topped lava dome that forms the basaltic-to-dacitic volcano's summit. Myoko volcano was constructed during four stages beginning about 300,000 years ago, each evolving from basaltic to andesitic and dacitic eruptions. The latest eruptive stage began about 43,000 years ago. Several episodes of edifice collapse at Myoko during the late Pleistocene to early Holocene have produced major debris avalanches that traveled to the east and NE. Myoko produced pyroclastic flows down the eastern flanks of the volcano during the mid Holocene about 5800 and 4200 years ago, and the latest dated eruption produced pyroclastic surges about 2800-2500 years ago. No historical eruptions are known at Myoko, but constant solfataric activity occurs between the dome and the south caldera wall at a place where sulfur was once mined.

Asama
Asama, Honshu's most active volcano, overlooks the resort town of Karuizawa, 140 km NW of Tokyo. The volcano is located at the junction of the Izu-Marianas and NE Japan volcanic arcs. The modern cone of Maekake-yama forms the summit of the volcano and is situated east of the horseshoe-shaped remnant of an older andesitic volcano, Kurofu-yama, which was destroyed by a late-Pleistocene landslide about 20,000 years before present (BP). Growth of a dacitic shield volcano was accompanied by pumiceous pyroclastic flows, the largest of which occurred about 14,000-11,000 years BP, and by growth of the Ko-Asama-yama lava dome on the east flank. Maekake-yama, capped by the Kama-yama pyroclastic cone that forms the present summit of the volcano, is probably only a few thousand years old and has an historical record dating back at least to the 11th century AD. Maekake-yama has had several major plinian eruptions, the last two of which occurred in 1108 (Asama's largest Holocene eruption) and 1783 AD.
Smithsonian Volcano Information | Asama Volcano Observatory | Geological Survey of Japan

Kusatsu-Shirane
The summit of Kusatsu-Shirane volcano, located immediately north of Asama volcano, consists of a series of overlapping pyroclastic cones and three crater lakes. The andesitic-to-dacitic volcano was formed in three eruptive stages beginning in the early to mid Pleistocene. The Pleistocene Oshi pyroclastic flow produced extensive welded tuffs and non-welded pumice that covers much of the east, south and SW flanks. The latest eruptive stage began about 14,000 years ago. All historical eruptions have consisted of phreatic explosions from the acidic crater lakes or their margins. Fumaroles and hot springs that dot the volcano's flanks have strongly acidified many rivers draining from the volcano. The crater was the site of active sulfur mining for many years during the 19th and 20th centuries.

Shiga
The Shiga volcanic complex immediately north of Kusatsu-Shirane volcano consists of a group of small andesitic shield volcanoes and pyroclastic cones. A large lava plateau was erupted between about 300,000 to 200,000 years ago. The latest activity occurred between about 250,000 and 10,000 years ago (Nakano et al., 2001-). The Shiga-Kogen (Shiga Plateau) area is a popular winter sports destination.

Haruna
Haruna volcano is truncated by a small summit caldera containing the symmetrical post-caldera pyroclastic cone of Haruna-Fuji. Haruna-san volcano dates back prior to 300,000 years ago and had caldera-producing eruptions at about 200,000 and 40,000 years ago. Viscous lava flows and lava domes were subsequently extruded within and around the caldera, the western side of which is currently partially filled by Lake Haruna. The Futatsu-dake lava dome east of the caldera was the source of two large explosive eruptions during the 6th century AD.

Akagi
The broad, low dominantly andesitic Akagi volcano rises above the northern end of the Kanto Plain. It contains an elliptical, 3 x 4 km summit caldera with post-caldera lava domes arranged along a NW-SE line. Lake Ono is located at the NE end of the caldera. An older stratovolcano was partially destroyed by edifice collapse, producing a debris-avalanche deposit along the south flank. A series of large plinian eruptions accompanied growth of a second stratovolcano during the Pleistocene. Construction of the central cone in the late-Pleistocene summit caldera began following the last of the plinian eruptions about 31,000 years ago. During historical time unusual activity was recorded on several occasions during the 9th century, but reported eruptions in 1251 and 1938 are considered uncertain.

Hiuchi
Hiuchi volcano lies in Nikko National Park and erupted the 8 cu km Hiuchigatake-Nanairi tephra and pyroclastic flow deposit about 170,00-160,000 years ago. Two lava domes at the southern end of the summit of Hiuchi stratovolcano overlook Ozenuma lake, a popular hiking destination in the national park. The southern of the two domes, Akanagure, produced a series of viscous lava flows about 3500 years ago that extend to the southern and western flanks the volcano. The northern dome, Mi-ike, was the source of a tephra layer correlated with a report of historical activity in 1544 (Hayakawa, 1994b).

Nikko-Shirane
Shield volcano
Nikko-Shirane is a relatively small, 2578-m-high andesitic volcano consisting of a group of four lava domes resting on a shield volcano that rises to the NW of scenic Lake Chuzenji in Nikko National Park. All historical eruptions, recorded during the 17th-20th centuries, have consisted of phreatic explosions from Shirane-san, the youngest lava dome. Viscous lava flows with prominent levees from the underlying shield volcano Keizuka-yama were responsible for the formation of several scenic lakes north of the volcano.

Nantai
Nantai stratovolcano rises above the north shore of Lake Chuzenji in Nikko National Park, and forms a backdrop to the renowned temple complex at Nikko. Lava flows from the early stage of the construction of Nantai volcano dammed up the Daiyo River, forming Lake Chuzenji. The dramatic Kegon waterfall plunges over this barrier. Nantai has an asymmetrical profile when viewed from the west as a result of late-stage collapse of the north side of the volcano. Two major late-stage eruptions ejected large amounts of scoriae, followed by the emission of pyroclastic flows. A pumice-flow eruption was said to have occurred during the Holocene (Ishikawa et al., 1957), although Nakano et al (2001-) listed activity from 25,000 to 12,000 years ago. The latest effusive activity of Nantai produced the Osawa lava flow, a thick, viscous dacitic flow that traveled from the breached crater down the north flank.

Omanago Group
The Omanago volcano group consists of a series of five closely spaced lava domes that were constructed north and NW of Nantai volcano in Nikko National Park. The highest of the dacitic domes is 2367-m-high Omanago, which later erupted andesitic lavas. Mitsu-dake lava dome, which overlooks the hot spring resort of Lake Yunoko, was mapped as Holocene in age (Japan Association of Quaternary Research, 1987). Mitsu-dake was constructed on a southerly dipping slope, so that the southern of its two flat-topped domes is lower, and is overlapped by sediments of the Senjogahara plain.

Takahara
Takahara is a small stratovolcano with lava domes located SW of Nasu volcano and NNW of Utsunomiya city in central Honshu. The basaltic-to-dacitic volcano lies within the Shiobara caldera, which was formed during the late Pleistocene at the time of the eruption of the Otawara pumice-flow deposit. The latest dated eruption of Takahara took place about 6500 years ago along the NW-SE-trending Yumoto-Shiobara fissure system within the caldera. Eruptions along this fissure initially produced the phreatic Takahara-Uenohara tephra deposit, which was distributed primarily to the east. The symmetrical Fuji-san lava dome, one of many conical volcanoes named after Japan's renowned Mount Fuji, was extruded at the end of the eruption.

Nasu
The Nasu volcanic group consists of a N-S-trending cluster of stratovolcanoes and lava domes at the north end of the Kanto Plain. Nasu volcanic activity dates back about 500,000 years. Growth of three large basaltic-to-dacitic stratovolcanoes with life spans of about 200,000 years was followed by construction of three smaller andesitic stratovolcanoes, Asahi-dake, Futamata-yama, and Chausu-dake. Activity during the last 55,000 years included the collapse of Asahi-dake volcano about 30-40,000 years ago producing the massive Ofuji-san debris-avalanche deposit, which blankets a broad area SE of the volcano. The youngest volcano, Chausu-dake, began forming about 16,000 years ago. Six magmatic eruptions took place since then, the latest in 1408-1410, when the youngest summit lava dome, Chausu-dake, was formed. These eruptions produced block-and-ash flows and concluded with the extrusion of lava flows. Smaller phreatic eruptions have occurred every few hundred years during the past 5000 years.

Numazawa
Numazawa is a small, 2-km-wide dominantly dacitic-to-rhyolitic caldera constructed within an older Pliocene caldera. Eruptions of the 110,00 yrs Before Present (BP) rhyolitic Shibahara pyroclastic-fall deposit and the 71,000 BP dacitic Mukuresawa lava dome were followed by the dacitic plinian Mizunuma eruption about 45,000 years before present (BP), emplacement of the Sozan lava dome at 43,000 BP and the So-zan lava dome at about 20,000 BP. The Numazawako pumice flow and plinian eruption about 4600 years BP resulted in formation of the 1.5 x 2 km Numazawako caldera, now largely filled by a caldera lake.

Bandai
One of Japan's most noted volcanoes, Bandai-san rises above the north shore of Lake Inawashiro. The Bandai complex is formed of several overlapping andesitic stratovolcanoes, the largest of which is O-Bandai. Ko-Bandai volcano, which collapsed in 1888, was formed about 50,000 years ago. O-Bandai volcano was constructed within a horseshoe-shaped caldera that formed about 40,000 years when an older volcano collapsed, forming the Okinajima debris avalanche, which traveled to the SW and was accompanied by a plinian explosive eruption. The last magmatic eruption at Bandai took place more than 25,000 years ago, but four major phreatic eruptions have occurred during the past 5000 years, two of them in historical time, in 806 and 1888. Seen from the south, Bandai presents a conical profile, but much of the north side of the volcano is missing as a result of the collapse of Ko-Bandai volcano during the 1888 eruption, in which a debris avalanche buried several villages and formed several large lakes.

Adatara
The broad forested massif of Adatara volcano is located east of Bandai volcano, about 15 km SW of Fukushima city. Adatara consists of a group of basaltic-to-andesitic stratovolcanoes and lava domes that rise above Tertiary rocks on the south and abut Azuma volcano on the north. Adatara was constructed in three main stages that began about 550,000, 350,000, and 200,000 years ago. The high point of the complex is 1718-m-high Minowa-yama, a dome-shaped stratovolcano north of Tetsu-zan, the currently active stratovolcano. Numanotaira, the active summit crater, is surrounded by hot springs and fumaroles and is breached by the Io-gawa river ("Sulfur River") on the west. Seventy-two workers of a sulfur mine in the summit crater were killed during an eruption in 1900. Historical eruptions have been restricted to the 1.2-km-wide, 350-m-deep Numono-taira crater.

Azuma
The Azuma volcanic group consists of a cluster of stratovolcanoes, shield volcanoes, lava domes, and pyroclastic cones. The andesitic and basaltic complex was constructed in two E-W rows above a relatively high basement of Tertiary sedimentary rocks and granodiorites west of Fukushima city. Volcanic activity has migrated to the east, with the Higashi-Azuma volcano group being the youngest. The symmetrical Azuma-Kofuji crater and a nearby fumarolic area on the flank of Issaikyo volcano are popular tourist destinations. The Azuma complex contains several crater lakes, including Goshiki-numa and Oke-numa. Historical eruptions, mostly small phreatic explosions, have been restricted to Issaikyo volcano at the northern end of the Higashi-yama group.

Zao
The Zao volcano group, the most active of northern Honshu, consists of a complex cluster of stratovolcanoes straddling the Pacific Ocean-Japan Sea divide. The Pleistocene Ryuzan volcano forms the western Zao group (Nishi-Zao), and Byobu and Fubo volcanoes form the southern Zao group (Minami-Zao). The complex was constructed over granitic basement rocks as high as 1500 m and thus has a relatively small volume. The 7 cu km Zao volcano proper forms the central ao group (Chuo-Zao), a volcanic complex topped by several lava domes and the Goshiki-dake tuff cone, aligned along a NW-SE trend. Several episodes of edifice collapse produced debris avalanches during the Pleistocene. Goshiki-dake contains the active Okama crater, filled with a colorful, strongly acidic crater lake (pH 1.3). It has been the source of most of the frequent historical eruptions of Zao volcano, which date back to the 8th century AD.

Hijiori
Hijiori caldera is a small, inconspicuous caldera located NE of the massive Pleistocene Gassan volcano. The low 2.5-km-wide caldera formed during a large eruption about 10,300 radiocarbon years ago. This eruption was accompanied by dacitic pyroclastic flows and tephra fall that extended to the east and reached the Pacific coast and growth of a lava dome. Small local tephra deposits overlie lacustrine deposits. Hot springs occur at Hijiori, and caldera lake deposits have undergone extensive hydrothermal alteration. Hijiori has been evaluated as a potential geothermal energy source using hot dry rock as a heat source.

Narugo
Narugo (also known as Naruko) is a poorly defined, 5.5 x 7 km caldera NW of the city of Sendai. The caldera, formed during eruptions about 73,000 and 45,000 years ago, contains a cluster of four dacitic lava domes of Holocene age surrounding the 400-m-wide lake-filled Katanuma crater. The highest of the low, but steep-sided lava domes, Oga-dake, lies SE of the lake and reaches only 470 m above sea level. Oga-dake and Kurumiga-dake domes are capped by conglomerates and mudstones uplifted during dome growth. The only known eruption at Narugo in historical time occurred in 837 AD. Water vapor and sulfur-dioxide gas emission occurs from Shurado crater on Toyagamori lava dome west of the lake and from the bottom of the crater lake, which is one of the most acidic in Japan, with a pH of 1.6. Solfataras are found on the western shore of Katanuma, and sulfur is mined from sediments on the lake floor.

Onikobe
Honshu (Japan)
Onikobe caldera, located SW of Kurikoma volcano, is one of the few calderas in Japan with evidence of ring fractures and a resurgent dome. The Takahinata lava dome was last active about 350,000 years ago according to a fission-track date. Onikobe was active until about 0.2 million years ago (Nakano et al., 2001-). Geysers were said to be discovered about 1700 years ago at Onikobe, and geysers and hot springs are present today within the caldera.

Kurikoma
The summit of Kurikoma volcano is cut by a 4-km-wide caldera breached to the north that is partially filled by the Tsurugi-dake central cone, once mined for sulfur. The complex andesitic-to-dacitic stratovolcano was constructed over a relatively high basement of welded and unwelded Tertiary dacitic tuffs and sedimentary rocks and thus has a smaller volume than its height suggests. Early stage eruptions beginning about 500,000 years ago produced lava flows to the north and south, followed by growth of the Higashi-Kurikoma (East Kurikoma) stratovolcano. Magusa-dake volcano on the western side of the complex was active until about 100,000 years ago. Construction of the main cone concluded with lava flows to the east, SE, and west. Daichigamori lava dome and Aguroshi-yama pyroclastic cone are located on the southern flank. Minor phreatic eruptions have occurred in historical time from the central cone.

Chokai
Massive Chokai volcano, the largest of NE Honshu, overlooks the Japan Sea. Chokai is composed of two overlapping stratovolcanoes with a conical profile that has given it the local names Akita-Fuji or Dewa-Fuji. The summit of the gently sloping western volcano (Nishi-Chokai) is cut by a large horseshoe-shaped caldera breached to the south, whose floor contains lava domes. The younger eastern volcano (Higashi-Chokai) began forming about 20,000 years ago. It was cut by another large horseshoe-shaped caldera, breached to the north. During an eruption about 2600 years ago it was the source of the voluminous Kisakata debris avalanche, which reached the Pacific coast. Two post-caldera lava domes have been constructed at the upper SE end of the caldera. Intermittent reports of historical eruptions at Chokai date back to the 6th century AD.

Akita-Komaga-take
Calderas
Two calderas partially filled by basaltic cones cut the summit of Akita-Komaga-take volcano. The larger southern caldera is 1.5 x 3 km wide and has a shallow sloping floor that is drained through a narrow gap cutting the SW caldera rim. On its northern side the southern caldera borders a smaller more circular 1.2-km-wide caldera, whose rim is breached widely to the NE. The two calderas were formed following explosive eruptions at the end of the Pleistocene, between about 13,500 and 11,600 years ago. Two cones, Me-dake and Ko-dake, occupy the NE corner of the southern caldera, whose long axis trends NE-SW. The highest point of the volcano is a cone within the northern caldera, 1637-m-high Komaga-take (also known as Omae-dake or Oname-dake), which has produced lava flows to the north and east and has a 100-m-wide summit crater. Small-scale historical eruptions have occurred from cones and fissure vents inside the southern caldera.

Iwate
Viewed from the east, Iwate volcano has a symmetrical profile that invites comparison with Fuji, but on the west an older cone is visible containing an oval-shaped, 1.8 x 3 km caldera. After the growth of Nishi-Iwate volcano beginning about 700,000 years ago, activity migrated eastward to form Higashi-Iwate volcano. Iwate has collapsed seven times during the past 230,000 years, most recently between 739 and 1615 AD. The dominantly basaltic summit cone of Higashi-Iwate volcano, Yakushi-dake, is truncated by a 500-m-wide crater. It rises well above and buries the eastern rim of the caldera, which is breached by a narrow gorge on the NW. A central cone containing a 500-m-wide crater partially filled by a lake is located in the center of the oval-shaped caldera. A young lava flow from Yakushi-dake descended into the caldera, and a fresh-looking lava flow from the 1732 eruption traveled down the NE flank.

Hachimantai
The summit of Hachimantai volcano forms an undulating plateau surrounded by steep slopes. Hachimantai was constructed from widely scattered vents during the Pleistocene and is capped with andesitic lavas from vents in the center of the complex. Circular craters are located near Komono-more and Mokko-dake in the center of the plateau. The craters are youthful looking, but have not been dated. Hayakawa (1996, pers. comm.) considered Hachimantai to be of possible Holocene age. No historical eruptions have been recorded, but active solfataras are found on the western and southern flanks.

Akita-Yake-yama
One of several Japanese volcanoes named Yake-yama ("Burning Mountain"), Akita-Yake-yama is the most recently active of a group of coalescing volcanoes in NW Honshu immediately west of Hachimantai volcano. The main volcano, Yake-yama, contains a small lava dome in its 600-m-wide summit crater. Tsugamori volcano to the east is a stratovolcano of roughly the same height as Yake-yama and has a 2-km-wide crater breached to the NE. The flat-topped parasitic lava dome of Kuroshimori lies 4 km south of Yake-dake. Tamagawa Spa at the western foot, one of several thermal areas, is strongly radioactive. The last magmatic eruption at Akita-Yake-yama formed the Onigajo lava dome in the summit crater about 5000 years ago. The only known historical activity has consisted of somewhat uncertain 19th-century eruptions and mild phreatic eruptions in the 20th century.

Kanpu
The small Kanpu stratovolcano on the Oga Peninsula along the Japan Sea coast NW of Akita City was formed in four stages during the late Pleistocene and Holocene. The bulk of the volcano was formed in the third stage as a result of accumulation of thick andesitic lava flows. A pumice eruption at the end of the third stage about 2700 years before present was followed by a pyroclastic flow. Collapse of the central part of the volcano was followed by extrusion of basaltic lava flows in the final stage. An uncertain report suggesting that an eruption may have occurred at the time of a large earthquake in 1810 AD has been discredited.

Megata
Maars
Megata, a group of three small maars along the tip of the Oga Peninsula in NW Honshu, has been active during the Holocene (Ishikawa et al., 1957). Lakes 300-600 m wide fill the basaltic-to-dacitic maars, which are a noted locality for mantle-derived xenoliths. Ichinomegata, the easternmost, largest, and oldest of the three maars, is 600 m in diameter. Ninomegata and Sannomegata are located immediately east and south of Toga Bay. The maars are mostly late Pleistocene in age, but pottery from roughly 4000 years before present (Jomon Period) has been found within tephra layers from the maars (Murayama, 1987).

Iwaki
Iwaki volcano, symmetrical on all but its western flanks, has been called the Fuji-san of the Tsugaru district. The 2-km-wide summit crater is filled by a lava dome flanked by six explosion craters. Three lava domes are found on the western and southern flanks of the andesitic volcano, the NW-most active volcano in Honshu. Historical eruptions have been reported at Iwaki since 1600 AD and have consisted primarily of small-to-moderate phreatic explosions.

Towada
The dramatic, 11-km-wide, lake-filled Towada caldera formed during as many as six major explosive eruptions over a 40,000-year period ending about 13,000 years ago. Pre-caldera eruptive activity at Towada dates back to about 2 million years ago and produced basaltic-to-dacitic lava cones. Following late-Pleistocene andesitic-to-rhyolitic caldera-forming eruptions, the basaltic Ninokura stratovolcano grew in the SSE section of the caldera. The successive dacitic-to-rhyolitic Goshikiiwa explosive eruptions led to the formation of the roughly 2-km-wide Nakanoumi caldera, whose SW and NE rims form dramatic peninsulas extending into Lake Towada. The andesitic-to-dacitic Ogura-yama lava dome was built over the NE rim of Nakanoumi. The latest eruption of Towada took place in 915 AD, when eruptions from Ogura-yama produced widespread ashfalls and pyroclastic flows.

Hakkoda Group
The basaltic-to-rhyolitic Hakkoda volcano includes 14 stratovolcanoes and lava domes south of Mutsu Bay at the northern end of Honshu. The NE rim of an 8-km-wide Pleistocene caldera forms an arcuate ridge across a flat caldera-floor moat NE of the Hakkoda group volcanoes, which bury the SE caldera wall. A northern group of volcanoes, constructed within the caldera, appears to be younger than the southern group. Hakkoda-Odake, Ido-dake, and Tsurugi-dake have well-preserved craters. Akakura-dake has a 1-km-wide explosion crater breached to the north. No historical eruptions are known of the Hakkoda group, although an active solfatara occurs at Ido-dake, and hot springs are found at several locations within the caldera. Three minor phreatic eruptions were documented from Jigoku-numa on the SW flank of Odake volcano from the 13th-17th centuries. Three soldiers on a training mission in July 1997 were killed by inhalation of volcanic gas.

Osore-yama
Osore-yama, on the Shimokita Peninsula in northernmost Honshu, contains a 5-km-wide caldera partly occupied by a shallow lake that drains through the north caldera wall. Dissected lava domes ring the caldera floor. The andesitic-to-dacitic Osore-yama is largely Pleistocene in age, with activity dating back about 800,000 years. The last identified distal tephra deposit was erupted during the late Pleistocene. The only report of historical activity was in a Tohoku district travel document published in 1787, which stated that Yake-yama in Mutsu country (Osore-yama) had erupted. Older residents reported that large fires and clouds were sometimes seen from the summit, accounting for the volcano's local name, Yake-yama, or "Burning Mountain" (Murayama, 1987). Earthquake swarms have been documented at Osore-yama during the second half of the 20th century, and magma bodies have been detected beneath the volcano.

Mutsu-Hiuchi-dake
Honshu (Japan)
Mutsu-Hiuchi-dake, on the Shimokita Peninsula, is the northernmost volcano on the island of Honshu. The 781-m-high andesitic-dacitic stratovolcano is Pleistocene in age, with dated activity during an interval ranging from about 700,000 to 50,000 years ago, although fumarolic activity continues at the volcano.

Izu, Volcano, & Mariana Islands

Oshima
Izu Islands (Japan)
Oshima volcano in Sagami Bay, east of the Izu Peninsula, is the northernmost of the Izu Islands. The broad, low stratovolcano forms an 11 x 13 km island and was constructed over the remnants of three dissected stratovolcanoes. It is capped by a 4-km-wide caldera with a central cone, Mihara-yama, that has been the site of numerous historical eruptions. More than 40 parasitic cones are located within the caldera and along two parallel rift zones trending NNW-SSE. Although Oshima is a dominantly basaltic volcano, strong explosive activity has occurred at intervals of 100-150 years throughout the past few thousand years. Historical activity at Oshima dates back to the 7th century AD. A major eruption in 1986 produced spectacular lava fountains up to 1600 m height and a 16-km-high subplinian eruption column; more than 12,000 persons were evacuated from the island.

To-shima
Izu Islands (Japan)
The small 2 x 2.4 km island of To-shima is located in the northern Izu Islands south of Oshima Island and lies about 20 km west of the main volcanic front. Steep cliffs up to 300 m high ring the basaltic-to-basaltic andesite island on three sides. The 508-m-high summit of the island is asymmetrically located opposite the more gentle slopes of the northern side of the island, where the village of To-shima is located. The latest known eruption of To-shima stratovolcano occurred sometime between about 9000 and 4000 years ago, producing a lava flow from Kajiana crater.

Nii-jima
Izu Islands (Japan)
Pumice cone
The elongated island of Nii-jima, SSW of Oshima, is 11 km long and only 2.5 km wide. It is comprised of eight low rhyolitic lava domes that are clustered in two groups at the northern and southern ends of the island, separated by a low, flat isthmus. The flat-topped domes give the island the appearance of two large plateaus bounded by steep cliffs. The Mukai-yama complex at the southern end of the island and Achi-yama lava dome at the northern end were formed during Nii-jima's only historical eruptions in the 9th century AD. Shikine-yama and Zinai-to domes form small islands immediately to the SW and west of Nii-jima, respectively, during earlier stages of volcanism. Earthquake swarms occurred at Nii-jima during the 20th century.

Kozu-shima
A cluster of rhyolitic lava domes and associated pyroclastic deposits form the small 4 x 6 km island of Kozu-shima in the northern Izu Islands. Kozu-shima lies along the Zenisu Ridge, one of several en echelon ridges oriented NE-SW, transverse to the trend of the northern Izu arc. The youngest and largest of the 18 lava domes, 574-m-high Tenjo-yama, occupies the central portion of the island. Most of the older domes, some of which are Holocene in age, flank Tenjo-yama to the north, although late-Pleistocene domes are also found at the southern end of the island. Only two possible historical eruptions, from the 9th century, are known. A lava flow may have reached the sea during an eruption in 832 AD. Tenjo-san lava dome was formed during a major eruption in 838 AD that also produced pyroclastic flows and surges. Earthquake swarms took place at Kozu-shima during the 20th century.

Miyake-jima
The circular, 8-km-wide island of Miyake-jima forms a low-angle stratovolcano that rises about 1100 m from the sea floor in the northern Izu Islands about 200 km SSW of Tokyo. The basaltic volcano is truncated by small summit calderas, one of which, 3.5 km wide, was formed during a major eruption about 2500 years ago. Parasitic craters and vents, including maars near the coast and radially oriented fissure vents, dot the flanks of the volcano. Frequent historical eruptions have occurred since 1085 AD at vents ranging from the summit to below sea level, causing much damage on this small populated island. After a three-century-long hiatus ending in 1469, activity has been dominated by flank fissure eruptions sometimes accompanied by minor summit eruptions. A 1.6-km-wide summit caldera was slowly formed by subsidence during an eruption in 2000; by October of that year the crater floor had dropped to only 230 m above sea level.

Mikura-jima
Mikura-jima is a small steep-sided island located between the more well-known Miyake-jima and Hachijo-jima volcanoes. O-yama forms the 851-m-high summit of the basaltic-to-andesitic island, which is surrounded by cliffs up to about 500 m high and dissected on the southern-to-eastern sides. The sparsely populated island consists of a large stratovolcano with lava domes on the SE side. Several small sea stacks are located immediately offshore, including one 73 m high off the SE tip of the island. Growth of the stratovolcano took place until about 7000 years ago, and the latest activity occurred about 6000 years ago, when explosive eruptions and pyroclastic surges accompanied lava dome growth.

Kurose Hole
Submarine volcano
Summit Elev: -107 m
Kurose Hole, between Mikura and Hachijo-jima islands, is a nearly circular 5-7 km wide submarine caldera with a 600-760 m deep caldera floor. A flat-topped somma rim rises to within 107 m of the sea surface. Large amounts of dacitic pumice were recovered from dredges along the inner caldera wall. Kurose caldera has a youthful morphology, but the age of its most recent eruption is not known.
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Hachijo-jima
Hachijo-jima, in the central Izu Islands about 300 km south of Tokyo, consists of two small Quaternary dominantly basaltic stratovolcanoes forming an elongated NW-SE-trending island. The eroded Pleistocene-to-Holocene Higashi-yama volcano occupies the SE end of the 14-km-long island, and the symmetrical Holocene Nishi-yama volcano the NW end. Parasitic cones occur on the SE flank of Nishi-yama. The small volcanic island of Ko-jima lies several km to the west of Hachijo-jima. Growth of Higashi-yama began several tens of thousands of years ago, and included the formation of two small calderas. The initial submarine and early subaerial eruptions of Nishi-yama took place from 10,000 to 8000 years before present (BP). Its latest major activity, from the early Holocene until about 4000 years BP, was restricted to flank eruptions. Historical eruptions of Hachijo-jima, recorded since the 15th century, have been restricted to the summit of Nishi-yama and a submarine vent of unknown location.

Aoga-shima
The small 2.5 x 3.5 km dominantly basaltic island of Aoga-shima is surrounded by steep cliffs and contains a small 1.7 x 1.5-km-wide caldera. Two pyroclastic cones were formed inside the caldera during the volcano's latest eruption from 1780 to 1785. Growth of Aoga-shima volcano began with construction of the Kurosaki stratovolcano in the NW part of the island, after which the main stratovolcano began growing in the SE part of the island. Both summit and flank vents produced pyroclastic surges and lava flows. Late in the construction of the main cone a 1-1.5 km crater was formed on the SE flank. About 3000 years ago pyroclastic surges swept over the entire island. During about the next 600 years, lava flows and scoria deposits filled the SE crater, which also collapsed repeatedly. The current Ikenosawa crater was considered by Takada et al. (1992) to have formed by ring collapse at the time of a debris avalanche, after which the volcano was quiescent until the eruptions of historical time.

Myojin Knoll
A large submarine caldera, Myojin Knoll, lies between Aoga-shima and Bayonnaise Rocks volcanoes in the Izu-Bonin arc. The 6-7 km wide caldera, one of nine along this arc, has walls 500-900 m high. The high point on the western caldera rim is a pumice-mantled remnant of the pre-collapse volcanic complex that reaches a depth of 360 m. The walls of the caldera, also known as Kita-Bayonnaise (North Bayonnaise) reveal rhyolitic lava flows, shallow intrusions, and volcaniclastic deposits. A voluminous blanket of coarse rhyolitic pumice from the caldera-forming eruption mantles the caldera rim and its outer flanks. Post-caldera eruptions formed a lava dome that rises 250 m above the caldera floor. The age of the caldera is not known, but was considered by Fiske et al. (2001) to perhaps be as young as a few thousand years. An active hydrothermal vent field lies on the eastern caldera floor and has produced a polymetallic sulfide deposit from vent chimneys up to 30 m high that emit fluids as hot as 278 degrees C.

Bayonnaise Rocks
Bayonnaise Rocks represent part of the barely exposed rim of a largely submarine 8-9 km wide caldera. Formation of the caldera was followed by construction of a large (2.6 cu km) lava dome and/or lava flow complex on the caldera floor, originally located at a depth of 1000-1100 m. Most historical eruptions, recorded since the late-19th century, have occurred from Myojin-sho, a large post-caldera lava dome constructed on the NE rim of the caldera. Deposits from submarine pyroclastic flows associated with growth of the dacitic lava dome mantle the conical dome and extend into the NE part of the caldera and down its outer slopes. An explosive submarine eruption from Myojin-sho in 1952 destroyed a Japanese research vessel, killing all 31 on board. Submarine eruptions have also been observed from other points on the caldera rim and outside of the caldera.

Smith Rock
Smith Rock is a steep-sided basaltic pinnacle that forms part of the outer southern flank of a 8-9 km wide submarine caldera that truncates a 20-km-wide seamount. The caldera was formed between about 60,000 and 30,000 years ago. The Shirane dacitic central cone, 3 km wide and 800 m high, rises to within 8 m of the sea surface in the eastern side of the caldera, whose 600-700 m high walls and outer flanks expose basaltic, andesitic, and rhyolitic rocks. Two large submarine cones, Sumisu Knolls No. 1 and 2, lie west of the caldera. Submarine eruptions have been reported from a number of locations near 136-m-high Smith Rock (also known as Sumisu-jima, or Smith Island), the last of which occurred in 1916. Water discoloration has been frequently observed since the 1970s near Smith Rock. In October 1992, a 6-km-long zone of discolored water was seen extending from the shallow Shirane rock mass near the eastern rim of the caldera, which rises to within 7 m of the sea surface and is the youngest feature of the volcanic complex.

Tori-shima
The circular, 2.7-km-wide island of Tori-shima in the southern Izu Islands is capped by an unvegetated summit cone formed during an eruption in 1939. Fresh lava flows from this eruption form part of the northern coastline of the basaltic-to-dacitic edifice. The volcano is also referred to as Izu-Tori-shima to distinguish it from the several other Japanese island volcanoes called Tori-shima ("Bird Island"). The main cone is truncated by a 1.5-km-wide caldera that contains two central cones, of which 394-m-high Iwo-yama is the highest. Historical eruptions have also occurred from flank vents near the north coast and offshore submarine vents. A 6-8 km wide submarine caldera lies immediately to the north of Tori-shima.

Suiyo Seamount
Summit Elev: -1418 m
Suiyo Seamount, one of the Shichiyo Seamounts, named for the 7 days of the week, lies south of Sofugan volcano. Suiyo ("Wednesday") is an basaltic-to-dacitic submarine caldera and lava dome that rises abaout 1400 m from the sea floor to within 1418 m of the sea surface. The summit caldera is 1.5 km wide and about 500 m deep. Major hydrothermal activity was observed in July 1991, with temperatures reaching more the 290 degrees Centigrade, and the volcano was reclassified as active by the Japan Meteorological Agency.

Mokuyo Seamount
Mokuyo Seamount is one of the Shichiyo Seamounts, named for the 7 days of the week. Mokuyo ("Thursday") is a basaltic-andesite submarine caldera that rises 1780 m from the sea floor to within 920 m of the sea surface. The summit caldera is 3 x 2.3 km wide and about 450 m deep and contains a 180-m-high lava dome in its center. Major hydrothermal activity was observed in July 1990, and the volcano was reclassified as active by the Japan Meteorological Agency.

Doyo Seamount
Doyo Seamount is the southernmost of the Shichiyo Seamounts, named for the 7 days of the week. Doyo ("Saturday") is a basaltic-andesite submarine caldera that rises 2340 m from the sea floor to within 860 m of the sea surface. The large horseshoe-shaped summit caldera is 3 x 10 km wide. Major hydrothermal activity was observed in July 1990, and the volcano was reclassified as active by the Japan Meteorological Agency.

Nishino-shima
Volcano Islands (Japan)
The small island of Nishino-shima was recently enlarged when it was joined to several new islands that formed during an eruption in 1973-74. Water discoloration has been observed on several occasions since. The 700-m-wide island is the summit of a massive submarine volcano that has prominent satellitic peaks to the south, west, and NE. The summit of the southern cone rises to within 214 m of the sea surface 9 km SSE of Nishino-shima.

Kaikata Seamount
Volcano Is
Lava dome ?
Kaikata Seamount is a basaltic-to-dacitic submarine volcano located north of Kaitoku Seamount. The volcano rises 2350 m from the sea floor to within 162 m of the sea surface. The seamount contains two major summit peaks oriented NE-SW, with the SW peak being the highest. Hydrothermal activity was observed in 1988 at a depth of 460 m, and the volcano was reclassified as active by the Japan Meteorological Agency.

Kaitoku Seamount
Volcano Is
A submarine eruption was observed in 1984 from the SE peak of Kaitoku Seamount (Kaitoku Kaizan), a three-peaked submarine volcano 130 km NW of Iwo-jima. The SE peak is also known as Higashi-Kaitokuba (East Kaitokuba). A submarine eruption had previously been reported in 1543 from a point near the SW summit, the shallowest of the three, also known as Nishi-Kaitokuba (West Kaitokuba). The Japan Meteorological Agency (1996) listed depths of 103, 353, and 506 m for the SW, SE, and northern summits, respectively. The three volcanoes, whose summits are 13-18 km apart, are the highest features of a massive submarine volcano.

Kita-Iwo-jima
Volcano Islands (Japan)
No historical eruptions have occurred from the deeply eroded Kita-Iwo-jima stratovolcano, which forms a steep-sided basaltic cone rising 792 m above the sea. However, eruptions have been recorded since the 18th century from Funka-Asane, a submarine vent about 2 km NW of the island. Kita-Iwo-jima ("North Sulfur Island") is the northernmost of the Kazan Retto (Volcano Islands), located in the middle of the Izu-Marianas arc.

Ioto [Iwo-jima]
Volcano Islands (Japan)
Tuff cone
Ioto (also known as Iwo-jima) in the central Volcano Islands portion of the Izu-Marianas arc lies within a 9-km-wide submarine caldera. Ioto, Iwo-jima, and Io-jima are among many transliterations of the name, which means "Sulfur Island;" the volcano is also known as Ogasawara Io-jima to distinguish it from several other "Sulfur Island" volcanoes in Japan. The triangular, low-elevation, 8-km-long island narrows toward its SW tip and has produced trachyandesitic and trachytic rocks that are more alkalic than those of other Izu-Marianas arc volcanoes. The island has undergone dramatic uplift for at least the past 700 years accompanying resurgent doming of the caldera. A shoreline landed upon by Captain Cook's surveying crew in 1779 is now 40 m above sea level. The Moto-yama plateau on the NE half of the island consists of submarine tuffs overlain by coral deposits and forms the island's high point. Many fumaroles are oriented along a NE-SW zone cutting through Moto-yama. Numerous historical phreatic eruptions, many from vents on the west and NW sides of the island, have accompanied the remarkable uplift.

Kita-Fukutokutai
Volcano Is
Kita-Fukutokutai is a newly recognized submarine volcano halfway between Iwo-jima and Minami-Iwo-jima islands. The volcano rises to within 73 m of the sea surface. Water discoloration was reported several times beginning in 1937, and floating pumice was seen in 1953-54. In 1988 a fishing boat reported an eruption column about 100 m high, although the report was not confirmed at the time. The Japan Meteorological Agency, which has responsibility for the oversight of Japanese volcanoes, has classified Kita-Fukutokutai as an active volcano.

Fukutoku-Okanoba
Pyroclastic cone
Fukutoku-Okanoba is a submarine volcano located 5 km NE of the pyramidal island of Minami-Iwo-jima. Water discoloration is frequently observed from the volcano, and several ephemeral islands have formed in the 20th century. The first of these formed Shin-Iwo-jima ("New Sulfur Island") in 1904, and the most recent island was formed in 1986. Fukutoku-Okanoba is part of an elongated edifice with two major topographic highs trending NNW-SSE and is a trachyandesitic volcano geochemically similar to Iwo-jima.
Smithsonian Volcano Information | CNMI Emergency Management Office | USGS Volcano Hazards Program

Minami-Hiyoshi
Periodic water discoloration and water-spouting have been reported over this submarine volcano since 1975, when detonations and an explosion were also reported. Minami-Hiyoshi lies near the SE end of a coalescing chain of youthful seamounts and is the only historically active vent. The reported depth of the summit of the trachyandesitic volcano has varied between 274 and 30 m. The morphologically youthful seamounts Kita-Hiyoshi and Naka-Hiyoshi lie to the NW, and Ko-Hiyoshi to the SE.

Nikko
Nikko submarine volcano is a massive seamount that rises from nearly 3 km depth to within 391 m of the sea surface at the SE end of a submarine ridge segment extending from Minami-Iwo-jima island. Two large cones at the basaltic-to-andesitic volcano have been constructed on the NW and NE rims of a roughly 3-km-wide, flat-floored submarine caldera, whose rim is prominently displayed on the southern side, but largely buried on the north. A smaller cones lies on the SE caldera floor. The larger NW cone lies within a partially buried crater and displays hydrothermal activity. Discolored water was observed above Nikko seamount in July 1979, but no water discoloration has been observed during semi-regular seasonal reconnaissance flights since then. Hydrothermal venting was documented during a recent NOAA expedition.

Fukujin
One of the larger of the submarine volcanoes of the Marianas arc, Fukujin seamount has risen on occasion to just beneath the sea surface. Intermittent periods of water discoloration have been observed since the mid-20th century, and eruptions producing floating pumice were noted on several occasions.

Kasuga
Kasuga seamount is a conical volcano that rises to within 598 m of the sea surface SE of Fukujin submarine volcano. Kasuga is listed as an active volcano by the Japan Meteorological Agency, and floating pumice attributed to a submarine eruption of Kasuga was seen south of the volcano in the summer of 1959. Water discoloration from a possible submarine eruption was reported from a location near Kasuga seamount in November 1975. Kasuga, the northernmost of three seamounts in the the Kasuga seamount chain, rises from a depth of 3000 m. A series of flank vents are located low on the southern side of the edifice. The summit of Kasuga does not have a caldera or display hydrothermal activity, and the volcano is largely mantled by volcaniclastics. Altered basaltic and andesitic rocks dredged from the summit suggest that Kasuga 1 is the oldest of the three seamounts, although delicately preserved lava flow lobes and toes from a flank eruption suggest a very youthful age.

Minami Kasuga
Minami Kasuga (South Kasuga) is the central of three NNE-SSW trending volcanoes forming the Kasuga seamount chain, which trends SSE from the volcanic front of the Izu-Marianas arc. Minami Kasuga (also referred to as Kasuga 2) rises from about 3000 m depth to within 170 m of the sea surface and is the highest and largest volume of the three volcanoes. Two subsidiary cones are located low on the eastern flank. The morphology of Minami Kasuga is more complex than Kasuga 1 volcano to the north, and prominent ridges separate slopes of interspersed volcaniclastic and lava flow fields. Radionuclide decay rates indicate an age for Minami Kasuga of less than 8000 years and probably less than 1000 years; radium/thorium disequilibrium ratios suggest the flows may be only a few centuries old (Fryer et al., 1997). Active hydrothermal fields are located at the summit of Minami Kasuga, at the base of summit ridges, and on the lower flanks.

NW Eifuku
NW Eifuku is a small submarine volcano that pales in size in comparison to its larger neighbors, but displays vigorous thermal activity. The summit of the basaltic-to-andesitic Northwest Eifuku volcano lies 1535 m below the sea surface; the seamount lies at the NW end of a chain of submarine volcanoes that includes Eifuku and Daikoko, at the SE end. Hydrothermal fluid emission at NW Eifuku includes liquid carbon dioxide bubbles venting from "white smokers," one of only two places where natural liquid carbon dioxide emission has been observed. The hydrothermal field, named Champagne, was discovered during a 2003 NOAA expedition and lies in the steep headwall of a slope-failure scarp that cuts the summit and SW side of the volcano.
Smithsonian Volcano Information | CNMI Emergency Management Office | USGS Volcano Hazards Program

Daikoku
The conical summit of Daikoku seamount lies along an elongated E-W-trending ridge SE of Eifuku submarine volcano and rises to within 323 m of the sea surface. Daikoku submarine volcano is one of about a dozen displaying hydrothermal activity in the southern part of the Izu-Marianas chain. A steep-walled, 50-m-wide cylindrical crater on the north flank, about 75 m below the summit, is at least 135 m deep and was observed to emit cloudy hydrothermal fluid. During a NOAA expedition in 2006, scientists observed a convecting, black pool of liquid sulfur with a partly solidified, undulating sulfur crust at a depth of 420 m below the summit of Daikoku. Gases, particulate with the appearance of smoke, and liquid sulfur were bubbling up from the back edge of the sulfur pool.
Smithsonian Volcano Information | CNMI Emergency Management Office | USGS Volcano Hazards Program

Farallon de Pajaros
Mariana Is
The small 2-km-wide island of Farallon de Pajaros (also known as Uracas) is the northernmost and most active volcano of the Mariana Islands. Its relatively frequent historical eruptions dating back to the mid-19th century have caused the andesitic volcano to be referred to as the "Lighthouse of the western Pacific." The symmetrical, sparsely vegetated summit is the central cone within a small caldera cutting an older edifice, remnants of which are seen on the SE and southern sides near the coast. Flank fissures have fed lava flows during historical time that form platforms along the coast. Both summit and flank vents have been active at Farallon de Pajaros during historical time. Eruptions have also been observed from nearby submarine vents, and Makhahnas seamount, which rises to within 640 m of the sea surface, lies about 10 km to the SW.

Ahyi
Mariana Islands (Central Pacific)
Ahyi seamount is a large conical submarine volcano that rises to within 137 m of the sea surface about 18 km SE of the island of Farallon de Pajaros (Uracas) in the northern Marianas. Water discoloration has been observed over the submarine volcano, and in 1979 the crew of a fishing boat felt shocks over the summit area of the seamount followed by upwelling of sulfur-bearing water. On April 24-25, 2001 an explosive submarine eruption was detected seismically from a seismic station on Rangiroa Atoll, Tuamotu Archipelago. The event was well constrained (+/- 15 km) at a location near the southern base of Ahyi; the summit of the seamount lies within the location uncertainty.

Supply Reef
Mariana Islands (Central Pacific)
Supply Reef is a conical submarine volcano in the northern Mariana Islands that rises to within 8 m of the sea surface. The andesitic seamount lies about 10 km NW of the Maug Islands, the emergent summit of a submarine volcano that is joined to Supply Reef by a low saddle at a depth of about 1800 m. Supply Reef was mapped as Quaternary; living corals on the crater rim suggest that the volcano is either dormant or extinct (Corwin, 1971). Several submarine eruptions have been detected by sonar signals originating from points very approximately located at distances of 15-25 km NW of Supply Reef.

Maug Islands
Mariana Islands (Central Pacific)
Three small elongated islands up to 2.3 km long mark the northern, western, and eastern rims of a largely submerged 2.5-km-wide caldera. The highest point of the Maug Islands reach only 227 m above sea level; the submerged southern notch on the caldera rim lies about 140 m below sea level. The caldera has an average submarine depth of about 200 m and contains a twin-peaked central lava dome that rises to within about 20 m of the sea surface. The Maug Islands form a twin volcanic massif with Supply Reef, about 11 km to the north. The truncated inner walls of the caldera on all three islands expose lava flows and pyroclastic deposits that are cut by radial dikes; bedded ash deposits overlie the outer flanks of the islands. No eruptions are known since the discovery of the islands by Espinosa in 1522. The presence of poorly developed coral reefs and coral on the central lava dome suggests a long period of general quiescence, although it does not exclude mild eruptions (Corwin, 1971). A recent NOAA expedition detected possible evidence of submarine geothermal activity.

Asuncion
A single large asymmetrical stratovolcano, steeper on the NE side, forms 3-km-wide Asuncion Island. The steep NE flank of the 857-m-high volcano terminates in high sea cliffs. The gentler SW flanks have low-angle slopes bounded by sea cliffs only a few meters high. The southern flank of the volcano is cut by a large landslide scar. The southern flanks and western flanks of the volcano are mantled by ash deposits that may have originated during eruptions in historical time. An explosive eruption in 1906 also produced lava flows that descended about half way down the western and SE flanks, but several other historical eruption reports are of uncertain validity.

Agrigan
The highest of the Marianas arc volcanoes, Agrigan contains a 500-m-deep, flat-floored caldera. The elliptical island is 8 km long; its 965-m-high summit is the top of a massive 4000-m-high submarine volcano, the second largest in the Marianas Islands. Deep radial valley dissect the flanks of the thickly vegetated stratovolcano. The elongated caldera is 1 x 2 km wide and is breached to the NW, from where a prominent lava flow extends to the coast and forms a lava delta. The caldera floor is surfaced by fresh-looking lava flows and also contains two cones that may have formed during the volcano's only historical eruption in 1917. This eruption deposited large blocks and 3 m of ash and lapilli on a village on the SE coast, prompting its evacuation.

Pagan
Maars
Pagan Island, the largest and one of the most active of the Mariana Islands volcanoes, consists of two stratovolcanoes connected by a narrow isthmus. Both North and South Pagan stratovolcanoes were constructed within calderas, 7 and 4 km in diameter, respectively. The 570-m-high Mount Pagan at the NE end of the island rises above the flat floor of the northern caldera, which probably formed during the early Holocene. South Pagan is a 548-m-high stratovolcano with an elongated summit containing four distinct craters. Almost all of the historical eruptions of Pagan, which date back to the 17th century, have originated from North Pagan volcano. The largest eruption of Pagan during historical time took place in 1981 and prompted the evacuation of the sparsely populated island.

Alamagan
Alamagan is the emergent summit of a large stratovolcano in the central Mariana Islands with a roughly 350-m-deep summit crater east of the center of the island. The exposed cone is largely Holocene in age. A 1.6 x 1 km graben cuts the SW flank. An extensive basaltic-andesite lava flow has extended the northern coast of the island, and a lava platform also occurs on the south flank. Pyroclastic-flow deposits erupted about 1000 years ago have been dated, but reports of historical eruptions were considered invalid (Moore and Trusdell, 1993).

Guguan
The small island of Guguan, only 2.8 km wide, is composed of an eroded volcano on the south, a caldera with a post-caldera cone, and a northern volcano. The latter has three coalescing cones and a breached summit crater that fed lava flows to the west and NW. The 287-m high point of the island is the south rim of the caldera. Freycinet misidentifed Guguan with Alamagan; reported eruptions in 1819 and 1901 (Catalog of Active Volcanoes of the World) actually refer to solfataric activity on Alamagan (Corwin, 1971). The only known historical eruption of Guguan took place between 1882 and 1884 and produced the northern volcano and lava flows that reached the coast.

Zealandia Bank
Mariana Is
Zealandia Bank consists of two pinnacles about 1 km apart rising from a submerged bank to near the sea surface between Guguan and Sarigan Islands. One pinnacle reaches >1 m above water at low tide. Andesitic rocks were dredged at the southern peak, which showed some evidence of coral growth. Freshly broken pahoehoe basaltic rocks were recovered on the western flank of Zealandia Bank. The age of the most recent eruptive activity at Zealandia Bank is not known, but a NOAA bathymetric survey in 2004 detected fumarolic activity.

Sarigan
Sarigan volcano forms a 3-km-long, roughly triangular island. A low truncated cone with a 750-m-wide summit crater contains a small ash cone. The youngest eruptions produced two lava domes from vents above and near the south crater rim. Lava flows from each dome reached the coast and extended out to sea, forming irregular shorelines. The northern flow overtopped the crater rim on the north and NW sides. The sparse vegetation on the flows indicates they are of Holocene age (Meijer and Reagan, 1981).

Anatahan
The elongate, 9-km-long island of Anatahan in the central Mariana Islands consists of a large stratovolcano with a 2.3 x 5 km, E-W-trending compound summit caldera. The larger western portion of the caldera is 2.3 x 3 km wide, and its western rim forms the island's 790-m high point. Ponded lava flows overlain by pyroclastic deposits fill the floor of the western caldera, whose SW side is cut by a fresh-looking smaller crater. The 2-km-wide eastern portion of the caldera contained a steep-walled inner crater whose floor prior to the 2003 eruption was only 68 m above sea level. A submarine volcano, NE Anatahan, rises to within 460 m of the sea surface on the NE flank of the volcano, and numerous other submarine vents are found on the NE-to-SE flanks. Sparseness of vegetation on the most recent lava flows on Anatahan had indicated that they were of Holocene age, but the first historical eruption of Anatahan did not occur until May 2003, when a large explosive eruption took place forming a new crater inside the eastern caldera.

East Diamante
Mariana Is
The dacitic East Diamante submarine volcano contains an elongated NE-SW-trending caldera with a pronounced rim on the NE side. A large post-caldera cone lies on the SW caldera rim, and a complex of lava domes was constructed in the center of the caldera. Several areas of hydrothermal activity including "black smoker" sulfide chimneys at the Black Forest site were detected on the central dome complex at depths of only a few hundred meters. These marked the shallowest black smokers yet discovered. The summit of the submarine volcano extends to within 127 m of the sea surface.

Ruby
Ruby, a basaltic submarine volcano that rises to within 230 m of the sea surface near the southern end of the Mariana arc NW of Saipan, was detected in eruption in 1966 by sonar signals (Norris and Johnson, 1969). In 1995 submarine explosions were heard, accompanied by a fish kill, sulfurous odors, bubbling water, and the detection of volcanic tremor.

Esmeralda Bank
Esmeralda Bank is a massive submarine volcano with three summit cones oriented along a N-S line. Their summits are from 43 to 140 m beneath the sea surface. The highest, middle peak contains a 3-km-wide caldera open to the west and several parasitic cones. Frequent sulfur boils and water discoloration have been observed, which have variously been attributed to eruptive events or solfataric activity.

NW Rota-1
A submarine volcano detected during a 2003 NOAA bathymetric survey of the Mariana Island arc was found to be hydrothermally active and named NW Rota-1. The basaltic to basaltic-andesite seamount rises to within 517 m of the sea surface SW of Esmeralda Bank and lies 64 km NW of Rota Island and about 100 km north of Guam. When Northwest Rota-1 was revisited in 2004, a minor submarine eruption from a vent named Brimstone Pit on the upper south flank about 40 m below the summit intermittently ejected a plume several hundred meters high containing ash, rock particles, and molten sulfur droplets that adhered to the surface of the remotely operated submersible vehicle. The active vent was funnel-shaped, about 20 m wide and 12 m deep. NW Rota-1 is large submarine volcano with prominent structural lineaments about a kilometer apart cutting across the summit of the edifice and down the NE and SW flanks.
Smithsonian Volcano Information | NOAA Pacific Marine Environmental Laboratory | USGS Volcano Hazards Program

Forecast Seamount
Forecast Seamount lies about 70 km west of the southern tip of Guam and about 19 km NW of Seamount X. Hydrothermal fluid temperatures up to 200 degrees C, one of the highest temperature vent systems known in the Mariana arc, were measured during a 2006 NOAA expedition. Vent community species that occur on Forecast Seamount include shrimp, snails, limpets, crabs, sulfide worms, and scale worms, and differ from those further to the north in the Marianas arc.
Smithsonian Volcano Information | NOAA Pacific Marine Environmental Laboratory | USGS Volcano Hazards Program

Seamount X
Hydrothermal activity was detected during a 2003 NOAA expedition at a submarine volcano about 70 km WSW of Guam. The summit of the volcano, referred to as Seamount X, lies 1230 m below the sea surface. Diffuse sites of thermal venting colonized by shrimps, crabs, and scaleworms were detected near the summit during a 2006 NOAA expedition, and thick deposits of sulfur flows originating from the hydrothermal vent were observed that were covered with thousands of squat lobsters. Basaltic rocks were recovered along with sulfur samples. The summit of the volcano is cut by an elongated caldera.
Smithsonian Volcano Information | NOAA Pacific Marine Environmental Laboratory | USGS Volcano Hazards Program

Hokkaido

Oshima-Oshima
Hokkaido
Pyroclastic cone
Oshima-Oshima, a small, 4-km-wide Japan Sea island 55 km west of the SW tip of Hokkaido, is the emergent summit of two coalescing basaltic-to-andesitic stratovolcanoes. Higashi-yama, at the east end of the island, is cut by a 2-km-wide caldera covered on its west side by Nishi-yama volcano. The western cone failed during an eruption in 1741, creating a large horseshoe-shaped caldera breached to the north that extends from the summit down to the sea floor at the base of the volcano and producing a mostly submarine debris avalanche that traveled 16 km. A tsunami associated with the collapse swept the coasts of Hokkaido, western Honshu, and Korea, and caused nearly 1500 fatalities. The 1741 eruption, the largest in historical time at Oshima-Oshima, concluded with the construction of a basaltic pyroclastic cone at the head of the breached caldera. No eruptions have occurred since the late-18th century.

E-san
Hokkaido
E-san, a small andesitic stratovolcano capped by a 618-m-high lava dome, is Hokkaido's southernmost active volcano. E-san occupies the eastern tip of the double-pronged Oshima Peninsula across the Tsugaru Strait from Honshu. Another lava dome is located to the NW. Both the E-san lava dome, which formed about 9000 years ago, and the NW dome have been active during the Holocene. A minor phreatic eruption in 1846 produced a mudflow that caused many fatalities. The latest activity at E-san was a small eruption in 1874. Active fumaroles occur at a thermal area on the upper NW flank.

Komaga-take
The truncated Komaga-take volcano on the Oshima Peninsula of southern Hokkaido is one of the most active volcanoes of Japan's northernmost island. Komaga-take's sharp-topped 1131-m-high summit lies at the western side of a large breached crater that formed as a result of edifice collapse in 1640 AD. Hummocky debris avalanche material occurs at the base of the volcano on three sides. Much of the andesitic Komaga-take volcano is Pleistocene in age. Two late-Pleistocene and two Holocene plinian eruptions occurred prior to the first historical eruption in 1640, which began a period of more frequent explosive activity. The 1640 eruption, one of the largest in Japan during historical time, deposited ash as far away as central Honshu and produced a debris avalanche that reached the sea. The resulting tsunami caused 700 fatalities. Three plinian eruptions have occurred since 1640; in 1694, 1856, and 1929.

Nigorigawa
Hokkaido (Japan)
Hydrothermal field
Nigorigawa geothermal field is located in the late-Pleistocene Nigorikawa caldera in SW Hokkaido. The small 3-km-wide caldera, located along the shores of Uchiura Bay WNW of Komaga-take volcano, was formed during a major explosive eruption about 12,000 years ago. The caldera-forming eruption included the emplacement of pyroclastic-fall and -surge deposits and pyroclastic-flow deposits that extend northward and westward to the Pacific coast. The flat-bottomed caldera floor is cris-crossed by roads and houses of the town of Nigorigawa, and a river of the same name drains the caldera to the NW through a notch in the caldera rim.

Usu
Usu, one of Hokkaido's most well-known volcanoes, is a small stratovolcano located astride the southern topographic rim of the 110,000-year-old Toya caldera. The center of the 10-km-wide, lake-filled caldera contains Naka-jima, a group of forested andesitic lava domes. The summit of the basaltic-to-andesitic edifice of Usu is cut by a somma formed about 7-8,000 years ago when collapse of the volcano produced a debris avalanche that reached the sea. Dacitic domes erupted along two NW-SE-trending lines fill and flank the summit caldera. Three of these domes, O-Usu, Ko-Usu and Showa-Shinzan, along with seven crypto-domes, were erupted during historical time. The 1663 eruption of Usu was one of the largest in Hokkaido during historical time. The war-time growth of Showa-Shinzan from 1943-45 was painstakingly documented by the local postmaster, who created the first detailed record of growth of a lava dome.

Niseko
The Niseko volcano group in SW Hokkaido, WNW of Yotei volcano, contains a cluster of andesitic stratovolcanoes and lava domes. The volcanic complex is located NW of Niseko City. The latest dated activity at the Niseko group was a phreatic to magmatic eruption about 7000 years ago. Fumarolic areas and hot springs are found at various locations in the Niseko volcano group.

Yotei
Yotei is a symmetrical andesitic-to-dacitic stratovolcano with a Fuji-like profile located NW of Toya caldera. Its summit is truncated by a 700-m-wide crater that is cut on its NW rim by overlapping smaller craters. Deep radial gullies cut the flanks of Yotei. The latest eruption from Yotei took place about 5000-6000 years ago.

Shiribetsu
Shiribetsu volcano, located immediately SE of Yotei volcano in southwestern Hokkaido, is a small, 1107-m-high andesitic stratovolcano that contains a 1.5-km-wide crater breached widely to the west. It was created by a massive debris avalanche that removed the summit and swept more than 7 km to the west, forming a hummocky deposit at the SE foot of Yotei volcano. Shiribetsu volcano was mapped as Holocene in age (Japan Association of Quaternary Research, 1987).

Kuttara
The Kuttara volcanic group consists of a series of small stratovolcanoes, lava domes, pyroclastic cones, and a caldera near the Pacific coast SE of Toya caldera and SW of Shikotsu caldera. The Kuttara group was constructed during five major eruptive stages, the first of which occurred more than 60,000 years ago. A major dacitic pumice eruption at the end of the 4th stage about 40,000 years ago resulted in the formation of the 3-km-diameter Kuttara caldera. The caldera cut a basaltic-to-andesitic stratovolcano complex, which late in its activity produced two major andesitic lava flows on its north side at Kita-yama. Explosions, probably in early Holocene time, formed two large craters on the west flank of the caldera, and a dacitic lava dome was emplaced about 10,000 years ago. Late-stage phreatic explosion products from Jigoku-dani, a 300-400 m wide crater south of the lava dome, overlie the 1663 tephra from Usu volcano. Jigoku-dani and Noboribetsu Spa are the sites of intense thermal activity, including fumaroles, hot springs, and geysers.

Shikotsu
The 13 x 15 km Shikotsu caldera, largely filled by the waters of Lake Shikotsu, was formed during one of Hokkaido's largest Quaternary eruptions about 31-34,000 years ago. The small andesitic Tarumai stratovolcano was then constructed on its SE rim and has been Hokkaido's most active volcano in historical time. Pyroclastic-flow deposits from Tarumai extend nearly to the Pacific coast. Two other Holocene post-caldera volcanoes, Fuppushi (adjacent to Tarumai) and Eniwa (on the opposite side of the caldera), occur on a line trending NW from Tarumai, and were constructed just inside the caldera rim. Minor eruptions took place from the summit of Eniwa volcano as late as the 17th century. The summit of Tarumai contains a small 1.5-km-wide caldera formed during two of Hokkaido's largest historical eruptions, in 1667 and 1739. Tarumai is now capped by a flat-topped summit lava dome that formed in 1909.

Rishiri
Rishiri is a highly dissected andesitic stratovolcano that forms a 20-km-wide island west of the northern tip of Hokkaido. Extensive erosion has produced an extremely rugged topography, with a dramatic sharp-topped, 1719-m-high summit flanked by steep-sided radial ridges. A stratovolcano and flank lava domes were constructed at Rishiri beginning less than 200,000 years ago. Eruptions at the stratovolcano ceased about 37,000 years ago, after which only flank vents were active. Late-stage eruptions took place from scoria cones and maars along a 15-km-long NW-SE trend that extends to the SE coast. Flank eruptions were dominantly basaltic, but also included andesitic and rhyolitic activity. Extensive late-stage lava flows during the late Pleistocene form much of the northern and western coasts and extend offshore. The latest eruptions at Rishiri took place a few thousand years ago.

Tokachi
Tokachi volcano consists of a group of dominantly andesitic stratovolcanoes and lava domes arranged on a NE-SW line above a plateau of welded Pleistocene tuffs in central Hokkaido. Numerous explosion craters and cinder cones are located on the upper flanks of the small stratovolcanoes, with the youngest Holocene centers located at the NW end of the chain. Frequent historical eruptions, consisting mostly of mild-to-moderate phreatic explosions, have been recorded since the mid-19th century. Two larger eruptions occurred in 1926 and 1962. Partial cone collapse of the western flank of Tokachi-dake during the 1926 eruption produced a disastrous debris avalanche and mudflow.

Daisetsu
The Daisetsu volcano group (also spelled Taisetsu) lies at the northern end of the Daisetsu-Tokachi graben in central Hokkaido. It consists of a complex group of stratovolcanoes and lava domes associated with a small, 2-km-wide caldera. The eight satellitic volcanoes are aligned along a ring fracture that is centered over the eastern rim of the caldera. Asahi-dake, the highest peak of the complex, was constructed 3 km SW of the center of the caldera. Other stratovolcanoes are located along a NE-SW line cutting through the caldera that trends toward the Tokachi volcano complex to the SW. In contrast to the Tokachi group, no historical eruptions are known from Daisetsu, although the latest phreatic eruption took place sometime after 1739 AD. Fumarolic areas are located on Asahi-dake, where at one time sulfur was mined, and in the caldera.

Nipesotsu-Maruyama
The Nipesotsu-Maruyama volcano group, located west of Nukabira lake about 20 km east of Tokachi-dake volcano, is composed of a number of overlapping andesitic-to-dacitic stratovolcanoes and lava domes constructed along a NW-SE trend. The highest peak in the complex is 2013-m-high Nipesotsu-yama stratovolcano, which was active during the mid-Pleistocene, about 0.4-0.2 million years ago. The Maruyama stratovolcano and lava dome at the southern end of the complex was discovered to be a Quaternary volcano only in 1989. It is also referred to as Higashi-Tokachi-Maruyama to distinguish it from several other volcanoes named Maru-yama, which means "Round Mountain." A minor phreatic eruption took place at Maru-yama lava dome in 1898, and fumaroles are present on one of its summit craters.

Shikaribetsu Group
Shikaribetsu volcano consists of a group of andesitic-to-dacitic lava domes west and south of Lake Shikaribetsu in central Hokkaido. The youngest domes, which were mapped as Holocene (Japan Association of Quaternary Research, 1987), were constructed along a ENE-WSW line south of the lake. The age of the latest eruptions is not known precisely, but is less than 20,000 years (Nakano et al., 2001-). The largest dome, Higashi-Nupukaushinupuri, was built at the SW, breached end of a horseshoe-shaped crater. Two or more large debris-avalanche deposits extend to the south.

Akan
Akan is a 13 x 24 km, elongated caldera that formed more than 31,500 years ago immediately SW of Kutcharo caldera. Growth of four post-caldera stratovolcanoes, three at the SW end of the caldera and the other at the NE side, has restricted the size of the caldera lake. The 1-km-wide Nakamachineshiri crater was formed during a major pumice-and-scoria eruption about 13,500 years ago. Of the Holocene volcanoes of the Akan volcanic complex, only the Me-Akan group, east of Lake Akan, has been historically active, producing mild phreatic eruptions since the beginning of the 19th century. Me-Akan is composed of 9 overlapping cones. The main cone of Me-Akan proper has a triple crater at its summit. Historical eruptions at Me-Akan have consisted of minor phreatic explosions, but four major magmatic eruptions including pyroclastic flows have occurred during the Holocene.

Kutcharo
The 20 x 26 km Kutcharo caldera (also spelled Kussharo or Kuccharo), is the largest of a cluster of calderas in NE Hokkaido. The caldera was formed in a series of major eruptions between about 340,000 and 30,000 years ago. Naka-jima, a Holocene post-caldera dacitic-to-rhyolitic lava-dome complex, forms an island in the large lake that fills much of the western half of the caldera. The Holocene Atosanupuri stratovolcano and lava-dome complex islocated near the center of the caldera, east of the crescent-shaped Lake Kutcharo. Many lava domes were formed at Atosanupuri between about 10,000 and 1000 years ago. No historical eruptions are known, although intense fumarolic activity occurs on and around Atosanupuri volcano and along the shores of Lake Kutcharo.

Mashu
Mashu is a 6-km-wide Holocene caldera that truncates a stratovolcano constructed on the ESE rim of the large Kutcharo caldera. The steep-walled caldera, filled by the remarkably transparent waters of Lake Mashu, is one of the scenic highlights of Hokkaido. Following caldera collapse, a small andesitic stratovolcano, Kamuinupuri, was formed beginning about 4000 years ago, creating a reentrant into the SE side of the deep caldera lake. A large explosive eruption about 1000 years ago, the latest dated eruption from Mashu volcano, created a 1.2 x 1.5 km crater at the summit of Kamuinupuri. The small island of Kamuishu in the center of Lake Mashu represents the tip of a mostly submerged dacitic lava dome.

Rausu
Rausu is an andesitic-to-dacitic stratovolcano with summit lava domes on the Shiretoko Peninsula in NE Hokkaido. The 1660-m-high volcano is located along a ridge 5 km SW of Shiretoko-Iwo-san volcano, the NE-most Holocene volcano in Hokkaido. Young lava flows descent the NW flank and broad areas along the SE flank of Rausu, and an older lava flow traveled about 9 km to the west, reaching the coast of the Sea of Okhotsk along a broad front. Rausu-dake volcano produced eruptions of pumiceous tephras with associated pyroclastic flows about 2200, 1400, and 800 years ago. Recent work has documented a pyroclastic-flow deposit that overlies the 1739 tephra from Tarumai volcano in SW Hokkaido. Stratigraphic relationships place this eruption, the most recent known from Rausu, between about 1750 and 1850 AD.

Shiretoko-Iwo-zan
Shiretoko-Iwo-zan, one of many Japanese "sulfur mountains," is noted for the extrusion of molten sulfur during eruptions in 1889 and 1936. Located at the NE tip of Hokkaido on the Shiretoko Peninsula, the andesitic volcano contains two large craters at the summit that are breached to the NW. The southern crater contains a small flat-topped lava dome. The main cone, Naka-dake, was constructed NW of the headwalls of the two breached craters. Historical eruptions have originated from the southernmost of three explosion craters along a NNE-SSW line on the NW flank of the main cone of Shiretoko-Iwo-san.

Séismes
Cliquer sur les points colorés pour obtenir des informations (date, profondeur, magnitude ...du séisme)

Séismes historiques
De 1980 à 2014 et de magnitude >5
Réalisé à partir des données de l'USGS par MJ Broussaud
Cette création est mise à disposition sous un contrat Creative Commons.

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Profondeur 350-400 km

magnitude supérieure à 5

Chuquisaca, Bolivia
Field Name | Field Value
Profondeur (km) | 608.6
Magnitude | 4.4
place | Chuquisaca, Bolivia

Field Name | Field Value
Profondeur (km) | 488.11
Magnitude | 5.3
place | 165km N of Dili, East Timor

Field Name | Field Value
Profondeur (km) | 389.77
Magnitude | 5.2
place | 114km WNW of Rabaul, Papua New Guinea

place | 94km NNE of Ndoi Island, Fiji

place | 159km WSW of L'Esperance Rock, New Zealand

place | 171km NE of Palue, Indonesia

Profondeur (km) | 558
Magnitude | 5
place | 126km NE of Ndoi Island, Fiji

place | 180km SSW of Ndoi Island, Fiji

Profondeur (km) | 511
place | Bonin Islands, Japan region

Magnitude | 5
place | 162km ENE of Ndoi Island, Fiji

place | 68km WNW of Agrihan, Northern Mariana Islands

place | 115km NE of Ndoi Island, Fiji

place | South of the Fiji Islands

Profondeur (km) | 527
place | South of the Fiji Islands

place | 37km WSW of Quimili, Argentina

place | 203km SE of Tabiauan, Philippines

place | 90km W of Tarauaca, Brazil

place | 291km SE of Lambasa, Fiji

place | 8km WSW of Ndoi Island, Fiji

place | 11km WSW of Ndoi Island, Fiji

place | Izu Islands, Japan region

Magnitude | 5
place | 132km NNE of Dili, East Timor

place | 88km S of Ndoi Island, Fiji

place | 262km ESE of Sola, Vanuatu

place | 258km SE of Lambasa, Fiji

place | 161km SSE of Ndoi Island, Fiji

place | 40km E of Padilla, Bolivia

place | 130km N of Lanos, Indonesia

place | 7km SSE of Ndoi Island, Fiji

place | 278km ESE of Lambasa, Fiji

place | 131km SSW of Ndoi Island, Fiji

place | Fiji region

place | 58km WSW of Agrihan, Northern Mariana Islands

place | 195km SSW of Palimbang, Philippines

place | 30km ESE of Ndoi Island, Fiji

place | 16km WNW of Xitumenzi, China

place | 78km NNE of Ndoi Island, Fiji

place | 250km NNE of Ndoi Island, Fiji

place | Sea of Okhotsk

place | 111km NNW of Nggilat, Indonesia

place | 75km SE of Vrangel', Russia

place | 150km NNW of Ndoi Island, Fiji

place | 292km NW of Raoul Island, New Zealand

place | 1km SW of Santo Nino, Philippines

place | 190km E of Dolinsk, Russia

place | 115km ENE of Taron, Papua New Guinea

place | 123km SE of Ndoi Island, Fiji

place | 8km NE of Namatanai, Papua New Guinea

place | 189km SSW of Ndoi Island, Fiji

place | 40km W of Agrihan, Northern Mariana Islands

place | 118km WNW of Raoul Island, New Zealand

place | 197km SSE of Sigave, Wallis and Futuna

place | 14km NW of Zarubino, Russia

place | 9km N of Zarubino, Russia

place | 109km SW of Ndoi Island, Fiji

place | 23km ESE of Suncho Corral, Argentina

place | 222km SE of Lambasa, Fiji

place | Sulawesi, Indonesia

place | south of the Fiji Islands

place | Salta, Argentina

place | Primor'ye, Russia

place | Santiago Del Estero, Argentina

place | Bonin Islands, Japan region

place | Banda Sea

place | Kepulauan Barat Daya, Indonesia

place | Mindanao, Philippines

place | Bougainville region, Papua New Guinea

place | Bali Sea

place | Beni, Bolivia

place | Java Sea

place | Santa Cruz Islands region

place | northwest of the Kuril Islands

place | Moro Gulf, Mindanao, Philippines

place | Vanuatu region

place | Bismarck Sea

place | Jilin-Heilongjiang border region, China

place | Celebes Sea

place | Solomon Islands

place | Tonga

place | Acre, Brazil

place | Tyrrhenian Sea

place | Amazonas, Brazil

place | Java, Indonesia

place | Kermadec Islands region

place | Pagan region, Northern Mariana Islands

place | near the south coast of western Honshu, Japan

place | Strait of Gibraltar

place | New Ireland region, Papua New Guinea

place | Maug Islands region, Northern Mariana Islands

place | China-Russia-North Korea border region

place | Sea of Japan

place | Santa Cruz, Bolivia

place | Fiji

place | Bohol, Philippines

place | western Honshu, Japan

place | Flores Sea

place | Chuquisaca, Bolivia

place | Minahasa, Sulawesi, Indonesia

place |

place | eastern Russia-northeastern China border region

place | south of the Kermadec Islands

place | Colombia

place | near the south coast of Honshu, Japan

place | north of the Solomon Islands

place | Volcano Islands, Japan region

place | Peru-Brazil border region

place | Alamagan region, Northern Mariana Islands

place | southeast of Shikoku, Japan

place | southern Sumatra, Indonesia

place | Tatar Strait, Russia

place | Sakhalin, Russia

place | Heilongjiang, China

place | New Britain region, Papua New Guinea

place | La Paz, Bolivia

place | Anatahan region, Northern Mariana Islands

place | southern Peru

place | North Island of New Zealand

place | North Korea

place | Argentina-Paraguay border region

place | north of New Zealand

place | west of the Bonin Islands, Japan

place | Leyte, Philippines

place | Negros - Cebu region, Philippines

Profondeur 70 à 350 km

M > 5
Profondeur 70 à 350 km

place | 33km ENE of Port-Olry, Vanuatu

place | 55km E of Yairipok, India

place | 38km SW of Rota, Northern Mariana Islands

place | 117km ESE of Pondaguitan, Philippines

place | 208km SE of Pondaguitan, Philippines

place | 147km SE of Sarangani, Philippines

place | 93km SE of Pagan, Northern Mariana Islands

place | 13km SSW of JP Tinian Town pre-WW2, Northern Mariana Islands

place | 33km ESE of Arequipa, Peru

place | 19km SW of Juan Rodriguez Clara, Mexico

place | 7km SSE of Mazatan, Mexico

place | 52km N of Goroka, Papua New Guinea

place | 153km E of Iquique, Chile

place | 137km NW of Nuku`alofa, Tonga

place | 97km SE of Kuril'sk, Russia

place | 7km W of Mazatan, Mexico

place | 76km W of Hihifo, Tonga

place | 23km E of Jarm, Afghanistan

place | 31km ESE of Monte Patria, Chile

place | 175km NNE of Hirara, Japan

place | 142km W of Pangai, Tonga

place | 9km ENE of Port-Vila, Vanuatu

place | 19km N of Little Sitkin Island, Alaska

place | 4km E of Little Sitkin Island, Alaska

place | 63km SW of Pagan, Northern Mariana Islands

place | 204km SSE of Iwo Jima, Japan

place | 47km SE of Bilungala, Indonesia

place | 93km W of Kawangohari, Indonesia

place | 17km NNW of Wawa, Philippines

place | 151km E of Ndoi Island, Fiji

place | 12km SSW of Little Sitkin Island, Alaska

place | 6km NW of Little Sitkin Island, Alaska

place | 6km SW of Little Sitkin Island, Alaska

place | 5km ENE of Little Sitkin Island, Alaska

place | 10km N of Little Sitkin Island, Alaska

place | 11km SSW of Little Sitkin Island, Alaska

place | 5km WSW of Little Sitkin Island, Alaska

place | 3km WNW of Little Sitkin Island, Alaska

place | 3km S of Little Sitkin Island, Alaska

place | 13km S of Little Sitkin Island, Alaska

place | 21km SE of Little Sitkin Island, Alaska

place | 46km ESE of Kainantu, Papua New Guinea

place | 39km NE of Lakatoro, Vanuatu

place | 25km WNW of Subtanjalla, Peru

place | 1km WNW of Sindangkerta, Indonesia

place | 61km SSW of Bilungala, Indonesia

place | 169km NW of Neiafu, Tonga

place | 78km NNW of Curup, Indonesia

place | 33km ENE of Bitung, Indonesia

place | 89km NNW of Hachijo-jima, Japan

place | 12km WNW of Hanamaki, Japan

place | 46km SSW of Jarm, Afghanistan

place | 14km E of Nueva Concepcion, Guatemala

place | 10km N of Ofunato, Japan

place | 130km ENE of Namatanai, Papua New Guinea

place | 45km WNW of Ambunti, Papua New Guinea

place | 192km NNE of Bitung, Indonesia

place | 30km N of Komodo, Indonesia

place | 45km SE of Boca de Yuma, Dominican Republic

place | 98km SE of Hachijo-jima, Japan

place | 29km S of Coracora, Peru

place | 3km SSW of Palomares, Mexico

place | 136km NNE of Bristol Island, South Sandwich Islands

place | 54km NNW of Visokoi Island,

place | 67km SSW of San Pedro de Atacama, Chile

place | 76km W of Abra Pampa, Argentina

place | 33km W of Sola, Vanuatu

place | 30km NNW of Anchor Point, Alaska

place | 25km W of Labuhankananga, Indonesia

place | 7km SSE of Marihatag, Philippines

place | 155km NW of Pangai, Tonga

place | 23km E of Kalbay, Philippines

place | 45km NE of Lakatoro, Vanuatu

place | 31km E of Ito, Japan

place | 179km SE of Sarangani, Philippines

place | 213km NNW of Farallon de Pajaros, Northern Mariana Islands

place | 30km SE of Hidalgotitlan, Mexico

place | 204km WNW of Ile Hunter, New Caledonia

place | 61km NNW of Visokoi Island,

place | 47km E of Luganville, Vanuatu

place | 174km WSW of Tual, Indonesia

place | Kuril Islands

place | 36km SSW of Ocos, Guatemala

place | 109km NNE of Lae, Papua New Guinea

place | 62km W of Panguna, Papua New Guinea

place | 47km NW of Labuhankananga, Indonesia

place | 63km N of Talkeetna, Alaska

place | 15km N of Belen, Nicaragua

place | 155km S of Mata-Utu, Wallis and Futuna

place | 29km SSE of Severo-Kuril'sk, Russia

place | 36km ESE of Ydra, Greece

place | 68km ENE of Salamanca, Chile

place | 128km NE of Iquique, Chile

place | 155km NNW of Sola, Vanuatu

place | 38km SW of Khorugh, Tajikistan

place | 173km SSE of Lata, Solomon Islands

place | 55km W of Tobelo, Indonesia

place | 68km WNW of Panguna, Papua New Guinea

place | 84km NNW of Adak, Alaska

place | 13km SSE of Ilabaya, Peru

place | 142km ESE of Antofagasta, Chile

place | 223km NNW of Saumlaki, Indonesia

place | 13km S of Pematangsiantar, Indonesia

place | 15km NNE of Kunisaki-shi, Japan

place | 124km N of Finschhafen, Papua New Guinea

place | 195km NW of Saumlaki, Indonesia

place | 66km S of Sola, Vanuatu

place | 219km SSE of Mata-Utu, Wallis and Futuna

place | 62km SSE of Pujiharjo, Indonesia

place | 119km NNW of Finschhafen, Papua New Guinea

place | 60km WNW of Kirakira, Solomon Islands

place | 53km N of Kuripan, Indonesia

place | 85km N of Utan, Indonesia

place | 23km SSW of Agrihan, Northern Mariana Islands

place | 70km SSW of Bilungala, Indonesia

place | 35km NE of Port-Olry, Vanuatu

place | 111km NNW of Nago, Japan

place | 53km SW of Jiquilillo, Nicaragua

place | 127km SE of Mohean, India

place | 129km NNW of Amukta Island, Alaska

place | 20km S of Tinabogan, Indonesia

place | 80km N of Finschhafen, Papua New Guinea

place | 96km ESE of Taron, Papua New Guinea

place | 29km SSW of Lae, Papua New Guinea

place | 17km NE of Calama, Chile

place | 30km E of Port-Olry, Vanuatu

place | 203km NNW of Saumlaki, Indonesia

place | 92km S of Tateyama, Japan

place | 37km NNE of Calama, Chile

place | 50km ENE of Orcopampa, Peru

place | 6km E of Aratoca, Colombia

place | 34km E of Port-Olry, Vanuatu

place | 287km WNW of Saumlaki, Indonesia

place | 57km W of Agat Village, Guam

place | 154km WNW of Neiafu, Tonga

place | 91km ESE of Taron, Papua New Guinea

place | 16km SSW of Visokoi Island,

place | 151km SSE of Esso, Russia

place | 25km NNW of Calama, Chile

place | 39km SSE of Putre, Chile

place | 90km NW of Ishikawa, Japan

place | 45km S of Kroya, Indonesia

place | 41km S of Kroya, Indonesia

place | 224km W of Saumlaki, Indonesia

place | 35km NNW of Kandrian, Papua New Guinea

place | 159km SSE of Lata, Solomon Islands

place | 47km NNE of San Martin, Argentina

place | 14km S of Ashkasham, Afghanistan

place | 12km NE of Kalbay, Philippines

place | 8km SSW of Pajapita, Guatemala

place | 65km WNW of L'Esperance Rock, New Zealand

place | 48km ENE of Yonakuni, Japan

place | 166km WSW of Vaini, Tonga

place | 59km SSE of Bristol Island, South Sandwich Islands

place | 95km SSE of Iquique, Chile

place | 108km ENE of Keelung, Taiwan

place | 32km W of Sola, Vanuatu

place | 44km SSE of Bilungala, Indonesia

place | 61km NW of Neiafu, Tonga

place | 185km WSW of Merizo Village, Guam

place | 20km SW of Ashkasham, Afghanistan

place | 35km WNW of Ile Hunter, New Caledonia

place | 16km NE of Meulaboh, Indonesia

place | 3km SSW of Toride, Japan

place | 86km W of Kirakira, Solomon Islands

place | 12km SSW of Taltal, Chile

place | 146km NE of Petropavlovsk-Kamchatskiy, Russia

place | 182km NNW of Sola, Vanuatu

place | 181km NNW of Sola, Vanuatu

place | 259km SE of Iwo Jima, Japan

place | 12km SE of Calingasta, Argentina

place | 65km NE of Hihifo, Tonga

place | 39km E of Luganville, Vanuatu

place | 54km SE of Bilungala, Indonesia

place | 150km NE of Taltal, Chile

place | 217km NW of Ile Hunter, New Caledonia

place | 10km S of Funabashi, Japan

place | 59km SE of Muroran, Japan

place | 43km NNE of Quilmana, Peru

place | 14km NE of Machala, Ecuador

place | 90km SW of Ust'-Kamchatsk Staryy, Russia

place | 120km SE of Taron, Papua New Guinea

place | 108km NNW of Hihifo, Tonga

place | 141km NNW of L'Esperance Rock, New Zealand

place | 24km SE of Toba, Japan

place | 49km NNE of Yonakuni, Japan

place | 249km WNW of Saumlaki, Indonesia

place | 52km W of Ile Hunter, New Caledonia

place | 150km WNW of Hihifo, Tonga

place | 155km W of Neiafu, Tonga

place | 1km WNW of Ushiku, Japan

place | 86km WNW of Kandrian, Papua New Guinea

place | 149km SE of Lata, Solomon Islands

place | 70km SSE of Kuril'sk, Russia

place | 134km SSE of Sarangani, Philippines

place | 25km NNW of Chivay, Peru

place | 47km NNW of Visokoi Island,

place | 206km SW of Vaini, Tonga

place | 45km SSE of Ozernovskiy, Russia

place | 283km SW of Vaini, Tonga

place | 111km NNE of Thang, India

place | 58km NE of Luganville, Vanuatu

place | 45km N of `Alaqahdari-ye Kiran wa Munjan, Afghanistan

place | 28km NNW of Tilamuta, Indonesia

place | 94km NNE of L'Esperance Rock, New Zealand

place | 85km WNW of Kirakira, Solomon Islands

place | 56km SW of Uyuni, Bolivia

place | 141km NE of San Pedro de Atacama, Chile

place | 26km SW of Isangel, Vanuatu

place | Mariana Islands region

place | 10km W of Nereju, Romania

place | 63km WSW of Raoul Island, New Zealand

place | 284km ESE of Vostok, Russia

place | 40km NNE of San Pedro de Atacama, Chile

place | 85km SE of Taron, Papua New Guinea

place | 103km NNW of Finschhafen, Papua New Guinea

place | 43km NW of Agrihan, Northern Mariana Islands

place | 117km WNW of Tobelo, Indonesia

place | 46km N of Agrihan, Northern Mariana Islands

place | 25km ESE of Farkhar, Afghanistan

place | 110km NE of Iquique, Chile

place | 205km NW of Saumlaki, Indonesia

place | 44km ESE of Uyugan, Philippines

place | 20km E of Sarangani, Philippines

place | 67km WSW of Rabaul, Papua New Guinea

place | 27km E of Akutan, Alaska

place | 86km WSW of Cantwell, Alaska

place | 41km ENE of Calama, Chile

place | 128km SE of Taron, Papua New Guinea

place | 40km WNW of Ile Hunter, New Caledonia

place | 120km NNE of Calama, Chile

place | 109km S of Raoul Island, New Zealand

place | 130km NNE of Tobelo, Indonesia

place | 84km NW of Labuhankananga, Indonesia

place | 41km S of Bilungala, Indonesia

place | 35km WSW of Kitami, Japan

place | 116km NW of L'Esperance Rock, New Zealand

place | 189km WNW of Saumlaki, Indonesia

place | 53km W of Raoul Island, New Zealand

place | 166km NW of Nuku`alofa, Tonga

place | 34km ESE of Bobon, Philippines

place | 14km WNW of Isangel, Vanuatu

place | 46km NE of Mawlaik, Burma

place | 18km W of Nueva Palestina, Mexico

place | 76km NNE of Whakatane, New Zealand

place | 58km ENE of Luganville, Vanuatu

place | 100km N of Raoul Island, New Zealand

place | 298km SW of Vaini, Tonga

place | 228km NW of Saumlaki, Indonesia

place | 20km E of Miyako, Japan

place | 120km NE of Oxapampa, Peru

place | 71km NE of Ozernovskiy, Russia

place | 42km NW of Torata, Peru

place | 121km SSE of Putre, Chile

place | 26km W of Miyako, Japan

place | 107km SSE of Putre, Chile

place | 46km SSE of Pujiharjo, Indonesia

place | 81km N of San Antonio de los Cobres, Argentina

place | 81km SSE of Panguna, Papua New Guinea

place | 71km N of Bristol Island, South Sandwich Islands

place | 141km SW of L'Esperance Rock, New Zealand

place | 52km E of Farkhar, Afghanistan

place | 45km N of San Antonio de los Cobres, Argentina

place | 19km S of Putina, Peru

place | 44km NW of Kota Ternate, Indonesia

place | 126km SW of Kokopo, Papua New Guinea

place | 107km WNW of Kirakira, Solomon Islands

place | 57km ENE of Los Andes, Chile

place | 58km NNE of Baturinggit Kaja, Indonesia

place | 48km WNW of Masachapa, Nicaragua

place | South of the Kermadec Islands

place | 30km S of Port-Vila, Vanuatu

place | 101km NE of Calama, Chile

place | 102km W of Abra Pampa, Argentina

place | 132km NE of Calama, Chile

place | 71km ENE of Norsup, Vanuatu

place | 92km W of Panguna, Papua New Guinea

place | 45km NE of Pucallpa, Peru

place | 129km NNW of Raoul Island, New Zealand

place | 88km NE of Petropavlovsk-Kamchatskiy, Russia

place | 283km ENE of Dili, East Timor

place | 59km WSW of Desaguadero, Peru

place | 91km NW of Nuku`alofa, Tonga

place | 46km SW of Anta, Peru

place | 83km ESE of Makubetsu, Japan

place | 42km NNE of Ccolo, Peru

place | 51km E of Farkhar, Afghanistan

place | 47km SE of Petropavlovsk-Kamchatskiy, Russia

place | 45km SE of Petropavlovsk-Kamchatskiy, Russia

place | 38km SE of Vilyuchinsk, Russia

place | 115km W of Panguna, Papua New Guinea

place | 272km ENE of Kuril'sk, Russia

place | 86km WSW of Orcopampa, Peru

place | 76km SE of Tondano, Indonesia

place | 196km NW of Farallon de Pajaros, Northern Mariana Islands

place | 165km N of Calama, Chile

place | 140km WNW of Neiafu, Tonga

place | 45km SSE of Tobelo, Indonesia

place | 239km NNE of Ceva-i-Ra, Fiji

place | 99km SE of Lata, Solomon Islands

place | 73km WSW of Paratunka, Russia

place | 7km SSE of Villa Presidente Frei, Nunoa, Santiago, Chile, Chile

place | 34km ESE of Putre, Chile

place | 54km E of Putre, Chile

place | 115km WNW of Raoul Island, New Zealand

place | 94km N of Isangel, Vanuatu

place | 104km SW of Hachijo-jima, Japan

place | 65km NNE of Naisano Dua, Indonesia

place | 219km NNW of Saumlaki, Indonesia

place | 251km ENE of Kuril'sk, Russia

place | 83km E of Khash, Iran

place | 32km SSE of Tondano, Indonesia

place | 105km WSW of Panguna, Papua New Guinea

place | 53km NNE of Isangel, Vanuatu

place | 180km W of Tual, Indonesia

place | 272km SE of Pondaguitan, Philippines

place | 2km WSW of Villa Rica, Peru

place | 38km W of Ambunti, Papua New Guinea

place | 86km WNW of Pangai, Tonga

place | 27km SSE of Taron, Papua New Guinea

place | 240km ENE of Enarotali, Indonesia

place | 25km SSW of Ashkasham, Afghanistan

place | 29km ENE of Nemuro, Japan

place | 130km N of Lae, Papua New Guinea

place | 46km SW of Ashkasham, Afghanistan

place | 47km SE of Bengkulu, Indonesia

place | 17km E of San Isidro, Philippines

place | 133km SSW of Kokopo, Papua New Guinea

place | 85km SW of Kokopo, Papua New Guinea

place | 192km SSW of L'Esperance Rock, New Zealand

place | 6km ENE of Santa Catarina Pinula, Guatemala

place | 182km NNE of Bitung, Indonesia

place | 217km E of Tadine, New Caledonia

place | 45km SW of Kokopo, Papua New Guinea

place | 5km NW of Kamaishi, Japan

place | 61km NNE of Isangel, Vanuatu

place | 82km W of Bulolo, Papua New Guinea

place | 129km SE of Pondaguitan, Philippines

place | 165km NW of Farallon de Pajaros, Northern Mariana Islands

place | 24km NW of Paratunka, Russia

place | 162km E of Dili, East Timor

place | 22km SSW of Andalgala, Argentina

place | 182km NNE of Whakatane, New Zealand

place | 16km SE of Caburan, Philippines

place | 14km WNW of Pangai, Tonga

place | 77km W of Neiafu, Tonga

place | 2km N of Yacuanquer, Colombia

place | 77km ESE of Lata, Solomon Islands

place | 26km SE of Ambunti, Papua New Guinea

place | 35km W of Padangsidempuan, Indonesia

place | 19km SSW of Obihiro, Japan

place | near the east coast of Honshu, Japan

place | 27km SSE of Nemuro, Japan

place | eastern Sea of Japan

place | near the coast of Nicaragua

place | Samar, Philippines

place | South Sandwich Islands region

place | 97km E of Iquique, Chile

place | 9km WNW of Redoubt Volcano, Alaska

place | offshore Chiapas, Mexico

place | 27km NNE of Putre, Chile

place | Myanmar

place | Taiwan region

place | Halmahera, Indonesia

place | Vanuatu

place | Guatemala

place | Hindu Kush region, Afghanistan

place | eastern New Guinea region, Papua New Guinea

place | Alaska Peninsula

place | northeast of Taiwan

place | northern Peru

place | Luzon, Philippines

place | Molucca Sea

place | Bali region, Indonesia

place | southeast of the Loyalty Islands

place | central Peru

place | Kyushu, Japan

place | Valparaiso, Chile

place | Antofagasta, Chile

place | Mindoro, Philippines

place | Tarapaca, Chile

place | Kepulauan Batu, Indonesia

place | San Juan, Argentina

place | Rat Islands, Aleutian Islands, Alaska

place | Kepulauan Talaud, Indonesia

place | Chiapas, Mexico

place | northern Colombia

place | northern Sumatra, Indonesia

place | near the north coast of New Guinea, Papua New Guinea

place | Lombok region, Indonesia

place | Tajikistan

place | Santa Cruz Islands

place | Kepulauan Sangihe, Indonesia

place | near the east coast of the Kamchatka Peninsula, Russia

place | Saint Martin region, Leeward Islands

place | Cook Strait, New Zealand

place | eastern Honshu, Japan

place | El Salvador

place | Kamchatka Peninsula, Russia

place | Jujuy, Argentina

place | Sunda Strait, Indonesia

place | Potosi, Bolivia

place | Neuquen, Argentina

place | Rota region, Northern Mariana Islands

place | Ryukyu Islands, Japan

place | Hokkaido, Japan region

place | Kepulauan Babar, Indonesia

place | southeastern Iran

place | New Guinea, Papua New Guinea

place | Andreanof Islands, Aleutian Islands, Alaska

place | Papua, Indonesia

place | Flores region, Indonesia

place | Mona Passage

place | off the east coast of the North Island of New Zealand

place | Southern Alaska

place | Veracruz, Mexico

place | Seram, Indonesia

place | Sumbawa region, Indonesia

place | Kermadec Islands, New Zealand

place | Savu Sea

place | Nicaragua

place | off the east coast of the Kamchatka Peninsula, Russia

place | Sumba region, Indonesia

place | Central Alaska

place | Kashmir-Xinjiang border region

place | Fox Islands, Aleutian Islands, Alaska

place | Philippine Islands region

place | Martinique region, Windward Islands

place | Guam region

place | Ecuador

place | Nias region, Indonesia

place | Catamarca, Argentina

place | east of the Mariana Islands

place | Peru-Ecuador border region

place | La Rioja, Argentina

place | Peru-Bolivia border region

place | Michoacan, Mexico

place | Costa Rica

place | South Island of New Zealand

place | Taiwan

place | Afghanistan-Tajikistan-Pakistan region

place | Atacama, Chile

place | Myanmar-India border region

place | offshore Sucre, Venezuela

place | Saint Kitts and Nevis region, Leeward Islands

place | Tonga region

place | Near Islands, Aleutian Islands, Alaska

place | Puerto Rico

place | offshore El Salvador

place | Nicobar Islands, India region

place | Dominican Republic region

place | Oruro, Bolivia

place | near the west coast of Honshu, Japan

place | northwest of the Ryukyu Islands, Japan

place | Andaman Islands, India region

place | offshore Guatemala

place | north of Halmahera, Indonesia

place | Dodecanese Islands, Greece

place | Mona Passage, Dominican Republic

place | Kepulauan Alor, Indonesia

place | Kepulauan Obi, Indonesia

place | western Xizang

place | Mendoza, Argentina

place | Kodiak Island region, Alaska

place | Oaxaca, Mexico

place | western Afghanistan

place | south of Bali, Indonesia

place | Timor region, Indonesia

place | southern Xinjiang, China

place | Romania

place | near the north coast of Papua, Indonesia

place | Cordoba, Argentina

place | Dominican Republic

place | near the coast of northern Peru

place | Maule, Chile

place | Libertador General Bernardo O'Higgins, Chile

place | Afghanistan-Pakistan border region

place | southern Italy

place | Kepulauan Mentawai region, Indonesia

place | near the coast of Ecuador

place | off the west coast of the South Island of New Zealand

place | southern Greece

place | Dominica region, Leeward Islands

place | Saipan region, Northern Mariana Islands

place | Bristol Bay

place | Saint Lucia region, Windward Islands

place | off the west coast of the North Island of New Zealand

place | Sicily, Italy

place | Kepulauan Tanimbar, Indonesia

place | Masbate region, Philippines

place | Honduras

place | Chubut, Argentina

place | Samoa Islands region

place | Loyalty Islands, New Caledonia

place | Dominica, Leeward Islands

place | southern Iran

place | Crete, Greece

place | Unimak Island region, Alaska

place | Region Metropolitana, Chile

place | Guerrero, Mexico

place | Araucania, Chile

place | Batan Islands region, Philippines

place | western Turkey

place | near the coast of southern Peru

place | Panama-Colombia border region

place | Coquimbo, Chile

place | southwestern Ryukyu Islands, Japan

place | offshore Coquimbo, Chile

place | Jalisco, Mexico

place | Kenai Peninsula, Alaska

place | east of the Kuril Islands

place | Nepal

place | Ceram Sea, Indonesia

place | Tobago region, Trinidad and Tobago

place | off the coast of Tarapaca, Chile

place | near the south coast of New Guinea, Papua New Guinea

place | off the coast of Central America

place | eastern Xizang-India border region

place | Biak region, Indonesia

place | south of Java, Indonesia

place | Trinidad region, Trinidad and Tobago

place | near the coast of central Peru

place | Kepulauan Kai, Indonesia

place | southwest of Sumatra, Indonesia

place | Iran-Pakistan border region

place | near the coast of Tarapaca, Chile

place | western Iran

place | Timor region

place | Catanduanes, Philippines

place | Grenada region, Windward Islands

place | Caspian Sea, offshore Azerbaijan

place | near the south coast of Papua, Indonesia

place | Golfo de Fonseca, Honduras

place | Babuyan Islands region, Philippines

place | south of Tonga

place | Manipur, India region

place | east of the North Island of New Zealand

place | East Timor region

place | south of the Solomon Islands

place | northwestern Kashmir

place | offshore Oaxaca, Mexico

place | Montserrat region, Leeward Islands

place | Buru, Indonesia

place | Tajikistan-Xinjiang border region

place | Rio Negro, Argentina

place | Zulia, Venezuela

place | Sabah, Malaysia

place | Sucre, Venezuela

place | Iran-Iraq border region

place | Caspian Sea, offshore Turkmenistan

place | San Luis, Argentina

place | Bio-Bio, Chile

place | south of the Mariana Islands

place | Azerbaijan

place | offshore Valparaiso, Chile

place | State of Yap, Federated States of Micronesia

place | Golfo de Fonseca, El Salvador

place | Kepulauan Sula, Indonesia

place | Antigua and Barbuda region, Leeward Islands

place | off the coast of Hokkaido, Japan

place | Barbados region, Windward Islands

place | Iraq

Profondeur 10 à 70 km

FID = 156
LATITUDE = 64,394
LONGITUDE = -20,807
PROFONDEUR = 10
MAGNITUDE = 5,1

FID = 3885
LATITUDE = 64,624
LONGITUDE = -17,543
PROFONDEUR = 5
MAGNITUDE = 5,1

FID = 5129
LATITUDE = 64,578
LONGITUDE = -17,482
PROFONDEUR = 8,6
MAGNITUDE = 5,7

PROFONDEUR = 10

depth | 10
mag | 5.8
place | 26km E of Dehloran, Iran

depth | 10
mag | 5.2
place | 33km E of Dehloran, Iran

depth | 10
mag | 5.6
place | 45km E of Dehloran, Iran

place | 36km SE of Abdanan, Iran

place | Mid-Indian Ridge

mag | 5

place | 2km SSW of Xiluodu, China

depth | 30.65
mag | 5
place | Off the east coast of Honshu, Japan

depth | 28.26
mag | 5
place | 41km SSE of Talghar, Kazakhstan

depth | 52.97
place | 17km ENE of Iquique, Chile

place | 173km W of Ile Hunter, New Caledonia

place | Central Mid-Atlantic Ridge

place | Federated States of Micronesia region

place | 16km W of Santiago Pinotepa Nacional, Mexico

place | 169km ENE of Angoram, Papua New Guinea

place | 148km SE of Hihifo, Tonga

place | West Chile Rise

place | 160km NE of Neiafu, Tonga

place | 184km ESE of Raoul Island, New Zealand

place | 101km NE of Chichi-shima, Japan

place | 74km ENE of Santa Rosalia, Mexico

place | 118km SE of Atka, Alaska

place | 81km E of Mutsu, Japan

place | 35km SE of Buala, Solomon Islands

place | 107km NE of Chichi-shima, Japan

place | 49km NW of Port-Olry, Vanuatu

place | 56km WSW of San Antonio, Chile

place | 107km SE of Kimbe, Papua New Guinea

place | 143km SSE of Raoul Island, New Zealand

place | 76km WSW of Banda Aceh, Indonesia

place | 169km SSW of Sechura, Peru

place | 19km NNW of Papayal, Peru

place | 42km S of Kirakira, Solomon Islands

place | 75km W of Buenaventura, Colombia

place | 11km WNW of Wenping, China

place | 35km E of Saga, China

place | 182km SSW of Lorengau, Papua New Guinea

place | 140km WSW of Naze, Japan

place | 124km NNE of Neiafu, Tonga

place | 11km NNW of Bordj el Kiffan, Algeria

place | 284km ENE of Port Blair, India

place | 283km SSW of `Ohonua, Tonga

place | 119km SW of Panguna, Papua New Guinea

place | Northern Mid-Atlantic Ridge

place | 39km SW of Kirakira, Solomon Islands

place | 293km SSW of Vaini, Tonga

place | South Indian Ocean

place | 70km SSW of Ialibu, Papua New Guinea

place | 125km SW of Ngulu, Micronesia

place | Southern Mid-Atlantic Ridge

place | East of the South Sandwich Islands

place | 56km ESE of Shikotan, Russia

place | 236km NE of Chichi-shima, Japan

place | 81km W of Gustavus, Alaska

place | South of Tonga

place | 76km ENE of Mutsu, Japan

place | 6km NNE of Hinundayan, Philippines

place | 100km S of Ngulung Wetan, Indonesia

place | Carlsberg Ridge

place | 20km SW of Coyuca de Benitez, Mexico

place | 49km NNE of Minab, Iran

place | 287km WSW of Merizo Village, Guam

place | 90km SE of Raoul Island, New Zealand

place | Owen Fracture Zone region

place | 116km SSW of Isangel, Vanuatu

place | 112km E of Lakatoro, Vanuatu

place | 76km W of Iquique, Chile

place | 140km SSW of Abepura, Indonesia

place | 93km NNW of Yakutat, Alaska

place | 78km E of Hengchun, Taiwan

place | 118km SE of Honiara, Solomon Islands

place | 114km SE of Honiara, Solomon Islands

place | 88km SSW of Vaini, Tonga

place | 85km E of Nikolski, Alaska

place | 89km W of Rabaul, Papua New Guinea

place | 90km W of Rabaul, Papua New Guinea

place | 162km SSW of Camana, Peru

place | 86km SSE of Pondaguitan, Philippines

place | Easter Island region

place | 73km SSW of Ngulung Wetan, Indonesia

place | 21km W of Iquique, Chile

place | 98km W of Rabaul, Papua New Guinea

place | 25km S of Khulm, Afghanistan

place | 107km SSW of Painan, Indonesia

place | 7km S of Quillota, Chile

place | 153km E of Iwaki, Japan

place | 143km E of Iwaki, Japan

place | 140km ESE of Namie, Japan

place | 86km SSW of Chirovanga, Solomon Islands

place | Balleny Islands region

place | 38km NNE of Mollendo, Peru

place | 130km NE of Shache, China

place | 13km N of Shiraoi, Japan

place | 102km SE of Hualian, Taiwan

place | 131km WNW of Tual, Indonesia

place | 43km S of Hihifo, Tonga

place | 14km ENE of Ocos, Guatemala

place | 16km W of Puerto Madero, Mexico

place | 10km SSW of Canas, Costa Rica

place | 7km SE of Layo, Peru

place | 86km SE of Sinabang, Indonesia

place | 126km S of Raoul Island, New Zealand

place | 8km ENE of Miyako, Japan

place | Azores Islands region

place | 196km S of Taron, Papua New Guinea

place | 86km WSW of Chirovanga, Solomon Islands

place | 209km SW of Abepura, Indonesia

place | 191km SE of Raoul Island, New Zealand

place | 79km SSE of Lolayan, Indonesia

place | 145km SE of Raoul Island, New Zealand

place | 80km WSW of San Antonio, Chile

place | 92km W of Cabra, Philippines

place | Pacific-Antarctic Ridge

place | 96km SSE of Raoul Island, New Zealand

place | 97km SSE of Raoul Island, New Zealand

place | North of Ascension Island

place | 215km WNW of Hihifo, Tonga

place | 3km SSE of Zaqatala, Azerbaijan

place | 201km SSE of Mata-Utu, Wallis and Futuna

place | 122km E of Bitung, Indonesia

place | 138km ESE of Iwo Jima, Japan

place | Western Indian-Antarctic Ridge

place | Off the east coast of Honshu, Japan

place | 52km ENE of Amatignak Island, Alaska

place | Prince Edward Islands region

place | 38km ESE of Buldir Island, Alaska

place | 156km WSW of Abepura, Indonesia

place | 80km ENE of Hihifo, Tonga

place | 169km N of Tobelo, Indonesia

place | 98km E of Sulangan, Philippines

place | 49km NE of Bandar-e Ganaveh, Iran

place | 100km WNW of Iquique, Chile

place | 93km WNW of Iquique, Chile

place | 46km SW of Taron, Papua New Guinea

place | 80km S of Amukta Island, Alaska

place | 83km WNW of Iquique, Chile

place | 85km WNW of Sola, Vanuatu

place | 62km S of Hirara, Japan

place | 163km SSE of Sinabang, Indonesia

place | 248km E of Ittoqqortoormiit, Greenland

place | 104km SSE of San Andres, Colombia

place | 33km ENE of Noatak, Alaska

place | 5km S of Cuilco, Guatemala

place | 51km WSW of Tumaco, Colombia

place | 21km ENE of Iwaki, Japan

place | 89km ESE of Iwaki, Japan

place | 90km SSW of Kirakira, Solomon Islands

place | 36km N of Finschhafen, Papua New Guinea

place | 17km W of Kishtwar, India

place | 74km W of Khuzdar, Pakistan

place | 198km NW of Sorong, Indonesia

place | 7km NE of Placer, Philippines

place | 105km S of Naze, Japan

place | 56km ENE of Burgos, Philippines

place | 95km SE of Laiwui, Indonesia

place | 106km WSW of Panguna, Papua New Guinea

place | 26km W of Camana, Peru

place | 9km NNW of Dayuanhuizu, China

place | 30km WNW of Linaon, Philippines

place | 66km E of Severo-Kuril'sk, Russia

place | 105km E of Artyom, Azerbaijan

place | 36km NE of Noatak, Alaska

place | 178km NW of Hihifo, Tonga

place | Scotia Sea

place | 80km SW of Iquique, Chile

place | 77km WSW of Haines, Alaska

place | 20km W of Chilca, Peru

place | 213km WNW of Lautoka, Fiji

place | 58km ESE of General Luna, Philippines

place | 185km W of Abepura, Indonesia

place | 39km SSW of Tympakion, Greece

place | North Indian Ocean

place | 31km ENE of Cortes, Philippines

place | 41km ENE of Cortes, Philippines

place | 36km ENE of Burgos, Philippines

place | 32km ENE of Cortes, Philippines

place | 43km ENE of Burgos, Philippines

place | 112km S of Raoul Island, New Zealand

place | 39km E of Cortes, Philippines

place | 85km E of Hihifo, Tonga

place | 15km E of Cortes, Philippines

place | 40km E of Cortes, Philippines

place | 89km NNE of Tocopilla, Chile

place | 29km NNW of Pingyuan, China

place | 144km SE of Modayag, Indonesia

place | 93km NW of Tome, Chile

place | 51km NW of Dib Dibba, Oman

place | 48km S of Puerto San Jose, Guatemala

place | 58km SSW of Puerto San Jose, Guatemala

place | 108km SSW of Kotaagung, Indonesia

place | 10km S of San Juan Cacahuatepec, Mexico

place | 115km S of Kirakira, Solomon Islands

place | 81km SSW of Kirakira, Solomon Islands

place | 235km SW of Biha, Indonesia

place | 29km NW of Piru, Indonesia

place | 275km SE of Konarka, India

place | 33km E of Bandar-e Ganaveh, Iran

place | 36km E of Bandar-e Ganaveh, Iran

place | 19km NNW of Ovalle, Chile

place | 26km SSW of Hualian, Taiwan

place | 126km ESE of Visokoi Island,

place | 130km ESE of Visokoi Island,

place | 142km ESE of Visokoi Island,

place | Central East Pacific Rise

place | 11km SSW of Cerrik, Albania

place | 171km S of Mata-Utu, Wallis and Futuna

place | 203km SSE of Isangel, Vanuatu

place | Off the west coast of northern Sumatra

place | 168km SSE of Mata-Utu, Wallis and Futuna

place | 87km W of Kuripan, Indonesia

place | Ascension Island region

place | 118km NE of Grande Anse, Guadeloupe

place | 16km NNW of Paijan, Peru

place | 51km WSW of Alim, Philippines

place | 106km SSE of Ifalik, Micronesia

place | 103km SSE of Ifalik, Micronesia

place | 86km SE of Punta de Burica, Panama

place | 72km SE of Punta de Burica, Panama

place | 62km SSW of Panguna, Papua New Guinea

place | 110km SE of Punta de Burica, Panama

place | 5km W of Chiba-shi, Japan

place | Off the coast of Oregon

place | Southern East Pacific Rise

place | 67km S of Panguna, Papua New Guinea

place | Chagos Archipelago region

place | 58km WSW of Panguna, Papua New Guinea

place | 101km SSE of Pondaguitan, Philippines

place | Southeast Indian Ridge

place | 201km N of Madang, Papua New Guinea

place | 241km SSW of `Ohonua, Tonga

place | 14km WSW of Tecpan de Galeana, Mexico

place | 105km SW of Panguna, Papua New Guinea

place | 230km S of `Ohonua, Tonga

place | 6km WSW of Tecpan de Galeana, Mexico

place | 116km S of Severo-Kuril'sk, Russia

place | 56km S of Kokopo, Papua New Guinea

place | 111km SW of Panguna, Papua New Guinea

place | 8km WSW of Mae Suai, Thailand

place | 8km NE of Mae Suai, Thailand

place | 66km W of Iquique, Chile

place | 37km SSW of Honiara, Solomon Islands

place | 166km NE of Arzak, China

place | 92km WSW of Onan Ganjang, Indonesia

place | 106km ESE of Hihifo, Tonga

place | 258km SE of Kamaishi, Japan

place | 70km SSE of Namlea, Indonesia

place | 149km W of Neiafu, Tonga

place | 76km WSW of Onan Ganjang, Indonesia

place | 109km SSE of Lata, Solomon Islands

place | 36km NNW of Valparaiso, Chile

place | 80km SSE of Punta de Burica, Panama

place | 70km ENE of Hami, China

place | 173km S of L'Esperance Rock, New Zealand

place | 226km SSW of `Ohonua, Tonga

place | Southwest Indian Ridge

place | 88km NE of Kurumkan, Russia

place | 207km WNW of Da Qaidam Hu, China

place | 66km NE of Nuku`alofa, Tonga

place | Greenland Sea

place | 26km NW of Kish, Iran

place | 277km SSE of Sigave, Wallis and Futuna

place | 158km NNE of Neiafu, Tonga

place | 73km SSE of Bristol Island, South Sandwich Islands

place | 103km N of Constitucion, Chile

place | 120km S of Port Hardy, Canada

place | 22km SW of Lata, Solomon Islands

place | 96km S of Naze, Japan

place | 140km ESE of Pangai, Tonga

place | 47km E of Adak, Alaska

place | 114km NW of Iquique, Chile

place | 118km ESE of Pangai, Tonga

place | 277km WSW of Merizo Village, Guam

place | 295km E of Petropavlovsk-Kamchatskiy, Russia

place | 50km W of Kandrian, Papua New Guinea

place | 127km SW of Padangsidempuan, Indonesia

place | 95km S of Panguna, Papua New Guinea

place | 88km SSW of Panguna, Papua New Guinea

place | 53km E of Stoney Ground, Anguilla

place | 11km SSE of Petatlan, Mexico

place | 70km SSW of Panguna, Papua New Guinea

place | 18km NE of Noatak, Alaska

place | 20km NE of Noatak, Alaska

place | 127km S of Wonosari, Indonesia

place | 122km S of Bambanglipuro, Indonesia

place | 124km WSW of Lata, Solomon Islands

place | 120km WSW of Lata, Solomon Islands

place | 167km W of Sabtang, Philippines

place | 110km E of Namie, Japan

place | 138km SSE of Kirakira, Solomon Islands

place | 155km SSE of Taron, Papua New Guinea

place | Southeast of Easter Island

place | Bouvet Island region

place | 32km E of Aras-asan, Philippines

place | 149km SE of Kirakira, Solomon Islands

place | 140km SE of Kirakira, Solomon Islands

place | 101km S of Ierapetra, Greece

place | 71km S of Kirakira, Solomon Islands

place | 60km SW of Kirakira, Solomon Islands

place | 88km SW of Iquique, Chile

place | 127km SSE of Kirakira, Solomon Islands

place | 176km SW of Nadi, Fiji

place | 121km SSE of Kirakira, Solomon Islands

place | 73km WSW of Iquique, Chile

place | 103km S of Panguna, Papua New Guinea

place | 166km E of Visokoi Island,

place | 43km WNW of Cartagena, Chile

place | 72km SW of Iquique, Chile

place | 13km WSW of Ciudad Sandino, Nicaragua

place | 16km SW of Valle San Francisco, Nicaragua

place | 78km NNW of Hihifo, Tonga

place | 128km S of Vanimo, Papua New Guinea

place | 264km ESE of Kulumadau, Papua New Guinea

place | 148km WNW of Attu Station, Alaska

place | 93km WSW of Iquique, Chile

place | 74km SE of Neiafu, Tonga

place | 80km SSW of Aitape, Papua New Guinea

place | 25km N of Vina del Mar, Chile

place | 59km E of Kamaishi, Japan

place | 4km SE of Xiluodu, China

place | South of Africa

place | 25km WSW of Kirakira, Solomon Islands

place | 159km S of Bengkulu, Indonesia

place | 68km WSW of Iquique, Chile

place | 66km SSW of Iquique, Chile

place | 12km NE of Ofunato, Japan

place | 48km SSE of Pedregal, Panama

place | 71km NW of Iquique, Chile

place | 193km W of Lata, Solomon Islands

place | 80km N of Iquique, Chile

place | 136km SW of Ongjin, North Korea

place | 44km SW of Hastings, New Zealand

place | 99km E of Maindong, China

place | 18km W of Maoping, China

place | 109km ESE of Takahagi, Japan

place | 124km S of Taron, Papua New Guinea

place | 15km SSW of Masachapa, Nicaragua

place | 75km SW of Vinchina, Argentina

place | 69km SW of Vinchina, Argentina

place | 124km E of Bitung, Indonesia

place | 199km E of Naze, Japan

place | 16km ESE of Coronel Marcelino Mariduena, Ecuador

place | 33km NW of Taltal, Chile

place | 227km NNW of Tobelo, Indonesia

place | 254km ESE of Hotan, China

place | 98km SE of San Felipe, Mexico

place | 108km ESE of Mohean, India

place | 118km SE of Mohean, India

place | 115km ESE of Mohean, India

place | 114km ESE of Mohean, India

place | 118km S of Sidorukun, Indonesia

place | 82km SSW of Taron, Papua New Guinea

place | 90km SSW of Taron, Papua New Guinea

place | 73km WSW of Masachapa, Nicaragua

place | 81km SSW of Taron, Papua New Guinea

place | 200km SSE of Bristol Island, South Sandwich Islands

place | 170km NNE of Raoul Island, New Zealand

place | 68km ENE of Hualian, Taiwan

place | 92km S of Taron, Papua New Guinea

place | 71km SW of Yonakuni, Japan

place | 53km ESE of Iwaki, Japan

place | 6km WSW of Malimono, Philippines

place | 16km W of Sechura, Peru

place | 40km WSW of Santa Cruz, Chile

place | 92km NE of San Isidro, Philippines

place | 205km W of Bengkulu, Indonesia

place | 24km S of Paracas, Peru

place | 97km ENE of Amahai, Indonesia

place | 212km WSW of Gold Beach, Oregon

place | 5km S of Amatignak Island, Alaska

place | 218km S of `Ohonua, Tonga

place | 202km S of `Ohonua, Tonga

place | 6km W of Sakura, Japan

place | 78km WNW of Ferndale, California

place | 56km ESE of Myaydo, Burma

place | Southwest of Africa

place | 177km NE of Raoul Island, New Zealand

place | 174km NE of Raoul Island, New Zealand

place | 169km SE of Sigave, Wallis and Futuna

place | 128km SE of Kimbe, Papua New Guinea

place | 189km S of Bristol Island, South Sandwich Islands

place | 33km SSE of Villa Alemana, Chile

place | 63km SSE of Buldir Island, Alaska

place | 163km WNW of Panguna, Papua New Guinea

place | 25km W of San Antonio, Chile

place | 31km W of San Antonio, Chile

place | 276km SSE of Hachijo-jima, Japan

place | 29km W of Valparaiso, Chile

place | 33km WNW of Naha-shi, Japan

place | 105km SW of Puerto Madero, Mexico

place | 98km SW of Puerto Madero, Mexico

place | 297km W of Puerto Chacabuco, Chile

place | Off the coast of Aisen, Chile

place | 90km E of `Ohonua, Tonga

place | 296km W of Puerto Chacabuco, Chile

place | 292km W of Puerto Chacabuco, Chile

place | 33km SW of Jiquilillo, Nicaragua

place | 136km WSW of Kota Ternate, Indonesia

place | Drake Passage

place | 132km W of Kota Ternate, Indonesia

place | 113km S of Pisangkemeng, Indonesia

place | 43km ESE of Palu, Indonesia

place | 90km ESE of Shikotan, Russia

place | 171km SE of Sinabang, Indonesia

place | 182km SSE of Sinabang, Indonesia

place | 129km NE of L'Esperance Rock, New Zealand

place | South Atlantic Ocean

place | 96km S of L'Esperance Rock, New Zealand

place | 44km NNE of Nogliki, Russia

place | 15km S of Sanare, Venezuela

place | 12km ENE of Santiago, Peru

place | 102km S of Kokopo, Papua New Guinea

place | 114km NNE of Finschhafen, Papua New Guinea

place | 68km W of Callaguip, Philippines

place | 172km NNE of Bathsheba, Barbados

place | 102km NNW of Boroko, Indonesia

place | 146km S of False Pass, Alaska

place | 9km NNE of Tame, Colombia

place | 16km WNW of Davila, Philippines

place | 61km W of Illapel, Chile

place | 11km NNW of Lixourion, Greece

place | 87km SE of Tual, Indonesia

place | 133km SSE of Isangel, Vanuatu

place | 139km SSE of Isangel, Vanuatu

place | 26km WSW of Santa Cruz, Chile

place | 268km ESE of Hotan, China

place | 272km ESE of Hotan, China

place | 242km NNW of Pubu, China

place | 107km NNW of Atambua, Indonesia

place | 82km E of `Ohonua, Tonga

place | 21km N of Mughan, Azerbaijan

place | 135km E of Miyako, Japan

place | 28km N of Carahue, Chile

place | 122km WNW of Panguna, Papua New Guinea

place | 41km SW of Honiara, Solomon Islands

place | 21km E of Iwaki, Japan

place | 33km ENE of Namie, Japan

place | 5km E of Hirara, Japan

place | 111km SE of Lata, Solomon Islands

place | 93km S of Isangel, Vanuatu

place | 70km SE of Ofunato, Japan

place | 79km E of `Ohonua, Tonga

place | 105km NE of Tocopilla, Chile

place | 165km ENE of Kavieng, Papua New Guinea

place | 260km ENE of Port Blair, India

place | 168km W of Sabtang, Philippines

place | 261km SSE of L'Esperance Rock, New Zealand

place | 90km SE of Minab, Iran

place | 189km SSE of L'Esperance Rock, New Zealand

place | 82km SE of Acari, Peru

place | 115km ENE of Dofa, Indonesia

place | 76km ESE of Amatignak Island, Alaska

place | 52km WNW of Mawlaik, Burma

place | 108km SSE of Auki, Solomon Islands

place | Reykjanes Ridge

place | 138km SSW of Lata, Solomon Islands

place | 10km NE of Taron, Papua New Guinea

place | 117km N of Dobo, Indonesia

place | 4km NNW of Lixourion, Greece

place | 2km SW of Balanacan, Philippines

place | 8km WNW of Sami, Greece

place | 52km NNE of Shwebo, Burma

place | 94km NNE of Hihifo, Tonga

place | 61km N of Port-Vila, Vanuatu

place | 27km SW of Zorritos, Peru

place | 211km W of Lata, Solomon Islands

place | 38km SSE of Adipala, Indonesia

place | 64km WNW of Pagsanahan Norte, Philippines

place | 134km SE of Rota, Northern Mariana Islands

place | 217km NNE of Ile Hunter, New Caledonia

place | 137km NW of Hihifo, Tonga

place | 106km ESE of Pangai, Tonga

place | 168km S of Severo-Kuril'sk, Russia

place | 56km S of Yap, Micronesia

place | 35km NNE of Masterton, New Zealand

place | 77km WNW of Abepura, Indonesia

place | 201km N of Chichi-shima, Japan

place | 27km WSW of Jaco, Costa Rica

place | 43km S of Naze, Japan

place | 241km E of Bouvet Island, Bouvet Island

place | 236km E of Bouvet Island, Bouvet Island

place | 16km S of Amatignak Island, Alaska

place | 13km SW of Amatignak Island, Alaska

place | 119km NW of Kota Ternate, Indonesia

place | 91km NE of Miyako, Japan

place | 71km SE of Hihifo, Tonga

place | 29km NNW of Turkmenbasy, Turkmenistan

place | 61km N of Hatillo, Puerto Rico

place | 129km NE of Hirara, Japan

place | 80km S of Lakatoro, Vanuatu

place | 26km NNW of Corralillo, Cuba

place | 220km NNE of Ile Hunter, New Caledonia

place | 27km SW of Tugu Hilir, Indonesia

place | 21km W of Santa Maria, Colombia

place | 22km NNW of Kish, Iran

place | 116km W of Nabire, Indonesia

place | 41km SE of Shizunai, Japan

place | 33km W of Chernabura Island, Alaska

place | 212km NNE of Ile Hunter, New Caledonia

place | 164km NNE of Tobelo, Indonesia

place | 167km NNE of Tobelo, Indonesia

place | 33km SW of Kaliandak, Indonesia

place | 44km S of Novita, Colombia

place | 218km ESE of Namie, Japan

place | 81km SW of Chirovanga, Solomon Islands

place | 104km SSW of Vaini, Tonga

place | 97km NNW of Burgos, Philippines

place | 84km NNW of Davila, Philippines

place | 52km NE of San Isidro, Philippines

place | 76km NNW of Davila, Philippines

place | 92km NW of Davila, Philippines

place | 83km NNW of Davila, Philippines

place | 77km NNW of Burgos, Philippines

place | 114km NNE of Neiafu, Tonga

place | 93km ENE of Hihifo, Tonga

place | 110km ENE of San Isidro, Philippines

place | 5km NE of San Potito Sannitico, Italy

place | 119km E of Bitung, Indonesia

place | 185km E of Farallon de Pajaros, Northern Mariana Islands

place | 77km SSW of Avsallar, Turkey

place | 181km E of Farallon de Pajaros, Northern Mariana Islands

place | 67km ESE of Hachinohe, Japan

place | 193km S of Kokopo, Papua New Guinea

place | 179km ENE of Tokar, Sudan

place | 97km NE of Visokoi Island,

place | 135km E of Hasaki, Japan

place | 184km E of Farallon de Pajaros, Northern Mariana Islands

place | 127km WSW of Lata, Solomon Islands

place | 15km NW of Shushenskoye, Russia

place | 231km NNW of Tobelo, Indonesia

place | 12km S of Asahi, Japan

place | 107km SSE of Tondano, Indonesia

place | 236km SE of Vao, New Caledonia

place | 34km WNW of Warah, Pakistan

place | 223km SSW of Severo-Kuril'sk, Russia

place | 222km NNW of Tobelo, Indonesia

place | 294km ESE of Grytviken, South Georgia and the South Sandwich Islands

place | 153km WSW of Te Anau, New Zealand

place | 228km SW of Biha, Indonesia

place | 10km ENE of Xinling, China

place | 35km NE of Norsup, Vanuatu

place | 3km ENE of Huicungo, Peru

place | 6km S of Asahi, Japan

place | 31km SW of Playas, Ecuador

place | 40km S of El Rosario, El Salvador

place | 84km NE of Poso, Indonesia

place | 23km ENE of Kuril'sk, Russia

place | 217km ENE of Socorro Island, Mexico

place | 210km WSW of Kuripan, Indonesia

place | 112km ESE of Kitaibaraki, Japan

place | 71km S of Gazanjyk, Turkmenistan

place | 288km SE of Bristol Island, South Sandwich Islands

place | 134km SE of Kuril'sk, Russia

place | 119km ENE of Chernabura Island, Alaska

place | 93km WSW of San Antonio, Chile

place | 108km NNE of Chirikof Island, Alaska

place | 26km SE of Chkalovsk, Tajikistan

place | 78km W of Lata, Solomon Islands

place | 190km ESE of Raoul Island, New Zealand

place | 7km E of Tibanbang, Philippines

place | 224km SE of Sarangani, Philippines

place | 91km ESE of Kitaibaraki, Japan

place | 59km SSE of Sinabang, Indonesia

place | 69km SE of Sinabang, Indonesia

place | 39km SSW of Zihuatanejo, Mexico

place | 218km WSW of Gold Beach, Oregon

place | 107km E of Visokoi Island,

place | 73km SE of Motuo, China

place | 106km ENE of Anatahan, Northern Mariana Islands

place | 145km SSW of Padangsidempuan, Indonesia

place | Indian Ocean Triple Junction

place | 75km ESE of Kimbe, Papua New Guinea

place | 76km SSW of Atka, Alaska

place | 56km E of Ishinomaki, Japan

place | Falkland Islands region

place | 247km E of Kuril'sk, Russia

place | 51km N of Wakkanai, Japan

place | 38km SW of Sarpol-e Zahab, Iran

place | 41km SSW of Sarpol-e Zahab, Iran

place | 47km ESE of Lazarev, Russia

place | 31km SW of Sarpol-e Zahab, Iran

place | 39km NNE of Changling, China

place | 234km W of Kamiiso, Japan

place | 28km SW of Sarpol-e Zahab, Iran

place | 277km W of Banda Aceh, Indonesia

place | 159km SE of Visokoi Island,

place | 79km SSE of Yap, Micronesia

place | 94km SE of Yap, Micronesia

place | 22km ENE of Kupang, Indonesia

place | 2km E of Chiba-shi, Japan

place | 237km SE of Iwo Jima, Japan

place | 18km ENE of Kamaishi, Japan

place | 69km SW of Yonakuni, Japan

place | 63km NNE of Naze, Japan

place | 97km W of Banda Aceh, Indonesia

place | 26km NNE of Amatignak Island, Alaska

place | 81km ENE of Mutsu, Japan

place | 32km NNE of Amatignak Island, Alaska

place | 77km SW of Chirovanga, Solomon Islands

place | 172km S of Ust'-Kamchatsk Staryy, Russia

place | 147km NW of Kota Ternate, Indonesia

place | 9km SE of Boshkengash, Tajikistan

place | 3km WSW of Moriya, Japan

place | 152km NE of Raoul Island, New Zealand

place | 42km S of Ngulu, Micronesia

place | 210km WSW of Port Hardy, Canada

place | 72km WNW of Lebu, Chile

place | 222km WNW of Abepura, Indonesia

place | 24km S of Bokakhat, India

place | 96km E of Nago, Japan

place | 85km NNW of Lae, Papua New Guinea

place | 140km NNE of Bristol Island, South Sandwich Islands

place | 60km ESE of Haebaru, Japan

place | 123km E of Ishinomaki, Japan

place | 153km S of False Pass, Alaska

place | 169km ESE of Neiafu, Tonga

place | 177km ESE of Neiafu, Tonga

place | 152km ESE of Neiafu, Tonga

place | 1km WSW of Nueva Fuerza, Philippines

place | 41km SSW of Coquimbo, Chile

place | 121km E of Ishinomaki, Japan

place | 46km SSW of Hualian, Taiwan

place | 232km ENE of Ile Rodrigues, Mauritius

place | 31km S of Qian'an, China

place | 45km N of Sangumata, Indonesia

place | 23km WNW of Port-Olry, Vanuatu

place | 88km W of Constitucion, Chile

place | 71km W of Constitucion, Chile

place | 93km SSE of Nikolski, Alaska

place | 300km SW of Longyearbyen, Svalbard and Jan Mayen

place | 12km S of Guarumal, Panama

place | 85km S of Hihifo, Tonga

place | 289km N of Bamboo Flat, India

place | 71km W of Pizarro, Colombia

place | 93km NE of L'Esperance Rock, New Zealand

place | 47km ESE of Sarangani, Philippines

place | 9km ESE of Inabanga, Philippines

place | 83km ENE of Namie, Japan

place | 94km SW of Atka, Alaska

place | 129km W of Lebu, Chile

place | 231km ESE of Tadine, New Caledonia

place | 281km SSE of Georgetown, Saint Helena

place | 56km NNE of Thang, India

place | 6km ENE of Balilihan, Philippines

place | 94km ENE of Visokoi Island,

place | West of the Galapagos Islands

place | 10km WSW of Loon, Philippines

place | 36km SE of Surab, Pakistan

place | 6km SW of Bood, Philippines

place | 11km WNW of Duljo, Philippines

place | 3km WNW of San Agustin, Philippines

place | 8km NW of Duljo, Philippines

place | 42km NNE of Abapo, Bolivia

place | 6km ENE of Loon, Philippines

place | 4km SSE of Clarin, Philippines

place | 11km W of Loon, Philippines

place | 0km ENE of Catigbian, Philippines

place | 1km S of Panaytayon, Philippines

place | 9km NNW of San Agustin, Philippines

place | 6km N of Nueva Fuerza, Philippines

place | 0km N of Danao, Philippines

place | 1km ENE of Casay, Philippines

place | 2km SSW of Inabanga, Philippines

place | 5km W of San Miguel, Philippines

place | 4km SE of Sagbayan, Philippines

place | 72km SSW of Painan, Indonesia

place | West of Macquarie Island

place | 35km WSW of Meulaboh, Indonesia

place | 102km SSE of Suva, Fiji

place | 31km W of Platanos, Greece

place | 36km N of Gueiria, Venezuela

place | 112km SW of Kuripan, Indonesia

place | 64km SSW of Nikolski, Alaska

place | 137km SSW of Nishinoomote, Japan

place | 193km E of Kuril'sk, Russia

place | 138km ENE of Samarai, Papua New Guinea

place | 137km ENE of Samarai, Papua New Guinea

place | 93km SE of Atka, Alaska

place | 153km SSE of Amsterdam Island,

place | 113km SE of Amsterdam Island,

place | 43km E of Tobelo, Indonesia

place | 96km NE of L'Esperance Rock, New Zealand

place | 35km NW of Jiangyou, China

place | 73km E of Nikol'skoye, Russia

place | 108km W of Sola, Vanuatu

place | 46km ESE of Naze, Japan

place | 150km WNW of Abepura, Indonesia

place | 151km N of Puerto Baquerizo Moreno, Ecuador

place | 42km NE of Nuku`alofa, Tonga

place | 142km WNW of Kimbe, Papua New Guinea

place | 7km NNW of Curanilahue, Chile

place | 18km NNW of Lebu, Chile

place | 67km S of Hihifo, Tonga

place | 85km NNE of Awaran, Pakistan

place | 117km SE of Honiara, Solomon Islands

place | 120km WNW of Cabra, Philippines

place | 49km NW of Rabaul, Papua New Guinea

place | 46km SSE of Acari, Peru

place | 127km W of Attu Station, Alaska

place | 78km NNE of Awaran, Pakistan

place | 130km SW of Druzhina, Russia

place | 98km WSW of Khuzdar, Pakistan

place | 185km WNW of Chichi-shima, Japan

place | 102km NNE of Awaran, Pakistan

place | 11km N of Awaran, Pakistan

place | 81km SW of Uthal, Pakistan

place | 113km SSW of Kute, Indonesia

place | 54km SSW of Shemya Island, Alaska

place | 244km SSE of L'Esperance Rock, New Zealand

place | 20km WSW of Naica, Mexico

place | 180km SW of Amatignak Island, Alaska

place | 78km S of Nishinoomote, Japan

place | 56km ESE of Hongtu, China

place | 15km NNW of Massawa, Eritrea

place | 65km SE of Ofunato, Japan

place | 52km NNW of Port-Olry, Vanuatu

place | 77km SSW of Atka, Alaska

place | 137km SE of Nikol'skoye, Russia

place | 89km SSW of Atka, Alaska

place | 91km NW of Bouvet Island, Bouvet Island

place | 87km S of Amukta Island, Alaska

place | 70km SW of Acajutla, El Salvador

place | 246km S of L'Esperance Rock, New Zealand

place | 83km ENE of Bunobogu, Indonesia

place | 77km ENE of Bunobogu, Indonesia

place | 49km NNE of Shwebo, Burma

place | 89km NNE of Hihifo, Tonga

place | 20km SSW of Champerico, Guatemala

place | 7km SSE of Ciudad Tecun Uman, Guatemala

place | 50km W of Sardinal, Costa Rica

place | 95km S of Atka, Alaska

place | 93km S of Unalaska, Alaska

place | 25km SE of L'Esperance Rock, New Zealand

place | 181km WSW of Bella Bella, Canada

place | 32km SSE of Taron, Papua New Guinea

place | 147km E of Raoul Island, New Zealand

place | 104km SW of Atka, Alaska

place | 110km ESE of Adak, Alaska

place | 3km SW of Benzilan, China

place | 108km SW of Atka, Alaska

place | 71km S of Port-Vila, Vanuatu

place | 6km ENE of Ergong, China

place | 68km W of Sungaipenuh, Indonesia

place | 4km W of Benzilan, China

place | 121km SE of Kuril'sk, Russia

place | 136km SSW of Severo-Kuril'sk, Russia

place | 154km SSW of Sinabang, Indonesia

place | 82km SSW of Pagaralam, Indonesia

place | 207km SSW of Kangin, Indonesia

place | 21km ESE of Acapulco de Juarez, Mexico

place | 18km WNW of San Marcos, Mexico

place | 111km S of Little Sitkin Island, Alaska

place | 29km SSE of Blenheim, New Zealand

place | 106km WSW of Banda Aceh, Indonesia

place | 66km ENE of `Ohonua, Tonga

place | 34km WSW of Vallenar, Chile

place | 107km ENE of Poso, Indonesia

place | 17km WNW of Cuajinicuilapa, Mexico

place | 33km ESE of Blenheim, New Zealand

place | 30km SE of Blenheim, New Zealand

place | 30km ESE of Blenheim, New Zealand

place | 27km SE of Blenheim, New Zealand

place | 30km SSE of Blenheim, New Zealand

place | 61km ENE of Tagolu, Indonesia

place | 146km SSW of Kokopo, Papua New Guinea

place | 172km SW of Sungaipenuh, Indonesia

place | 63km SSE of Hihifo, Tonga

place | 3km S of Ometepec, Mexico

place | 101km WSW of Mutis, Colombia

place | 77km WSW of Puerto Madero, Mexico

place | 96km WSW of Paita, Peru

place | 141km W of Sardinal, Costa Rica

place | 43km N of Wangda, China

place | 94km WSW of Firuzabad, Iran

place | 21km SE of Iwaki, Japan

place | 144km E of Miyako, Japan

place | 16km E of Tecoanapa, Mexico

place | 87km S of Lakatoro, Vanuatu

place | 82km S of Lakatoro, Vanuatu

place | 121km SW of Ceva-i-Ra, Fiji

place | 115km SW of Ceva-i-Ra, Fiji

place | 28km WSW of Pueblo Nuevo Tiquisate, Guatemala

place | 115km S of Port Hardy, Canada

place | 54km ESE of Ishinomaki, Japan

place | 19km S of Kosai-shi, Japan

place | 17km E of Kishtwar, India

place | 16km ESE of Kishtwar, India

place | 82km NNE of Hihifo, Tonga

place | 120km S of Severo-Kuril'sk, Russia

place | 95km SSW of Little Sitkin Island, Alaska

place | 158km NNE of Bristol Island, South Sandwich Islands

place | 133km N of Ceva-i-Ra, Fiji

place | 136km NNE of Saumlaki, Indonesia

place | 83km SE of Yigo Village, Guam

place | 199km NE of Bristol Island, South Sandwich Islands

place | 183km W of Port Hardy, Canada

place | 159km SE of Petropavlovsk-Kamchatskiy, Russia

place | 76km NE of Miyako, Japan

place | 86km WNW of Bengkulu, Indonesia

place | 11km S of Hualian, Taiwan

place | 7km E of Amatignak Island, Alaska

place | 17km E of Ishikawa, Japan

place | 69km SE of Diego de Almagro, Chile

place | 244km WNW of Marion Island, Prince Edward Islands

place | 9km NNE of Chabu, China

place | South Shetland Islands

place | 15km SW of Nabire, Indonesia

place | 34km SSE of Madang, Papua New Guinea

place | 46km ESE of Blenheim, New Zealand

place | 234km W of Abepura, Indonesia

place | 103km ENE of Hasaki, Japan

place | 34km E of Namie, Japan

place | 122km SE of Gizo, Solomon Islands

place | 11km S of Lata, Solomon Islands

place | 76km SSE of Lakatoro, Vanuatu

place | 30km SSE of Kamaishi, Japan

place | 34km E of Blenheim, New Zealand

place | 9km NNE of Utan, Indonesia

place | 60km WNW of Port-Vila, Vanuatu

place | 99km ENE of Lhokseumawe, Indonesia

place | 87km SE of Bristol Island, South Sandwich Islands

place | 181km NNE of Palmer Station, Antarctica

place | 33km SSW of Nemuro, Japan

place | 93km NE of Hihifo, Tonga

place | 76km S of Yonakuni, Japan

place | 127km S of La Libertad, El Salvador

place | 11km SSE of Damulog, Philippines

place | 28km N of Hualfin, Argentina

place | 158km SSE of Rudum, Yemen

place | 156km SSE of Rudum, Yemen

place | 156km WNW of Kimbe, Papua New Guinea

place | 173km SW of Sungaipenuh, Indonesia

place | 169km SW of Sungaipenuh, Indonesia

place | 101km ENE of Amahai, Indonesia

place | 112km ENE of Kyelang, India

place | 141km W of Farasan, Saudi Arabia

place | 31km SSW of El Rosario, El Salvador

place | 29km NE of Kandrian, Papua New Guinea

place | 57km WSW of Amatignak Island, Alaska

place | 36km ESE of Namie, Japan

place | 60km S of Bireun, Indonesia

place | 46km W of Kigorobya, Uganda

place | 74km ESE of Lar, Iran

place | 17km NNW of Hihifo, Tonga

place | 55km S of Bireun, Indonesia

place | 34km N of Karakul, Tajikistan

place | 62km E of Hualian, Taiwan

place | 42km NNE of Salyan, Nepal

place | 121km SE of Lolayan, Indonesia

place | 269km NW of Mohean, India

place | 83km E of Finschhafen, Papua New Guinea

place | 10km WSW of Nicoya, Costa Rica

place | 92km SSW of San Felix, Panama

place | 11km NNW of Pemenang, Indonesia

place | 129km SW of Merizo Village, Guam

place | 130km SW of Merizo Village, Guam

place | 2km SSW of Fivizzano, Italy

place | 85km ENE of Hachinohe, Japan

place | 63km NE of `Ohonua, Tonga

place | 81km S of Pirgos, Greece

place | Macquarie Island region

place | 15km NW of Copalillo, Mexico

place | 46km W of Masachapa, Nicaragua

place | 49km W of Masachapa, Nicaragua

place | 61km S of Pirgos, Greece

place | South of Panama

place | 186km ENE of Flying Fish Cove, Christmas Island

place | 86km E of Nago, Japan

place | 57km SW of Painan, Indonesia

place | 145km SW of Dadali, Solomon Islands

place | 68km ENE of Bristol Island, South Sandwich Islands

place | 116km NE of San Isidro, Philippines

place | 62km SW of Yonakuni, Japan

place | 5km SW of Koroni, Greece

place | 6km SSE of Naruto, Japan

place | 183km WSW of Abepura, Indonesia

place | 35km NE of Xitieshan, China

place | 54km SE of Pahala, Hawaii

place | 11km SW of Taron, Papua New Guinea

place | 71km NNE of Anatahan, Northern Mariana Islands

place | 242km E of Kuril'sk, Russia

place | 126km S of Bengkulu, Indonesia

place | 10km NNW of Linao, Philippines

place | 67km NW of Finschhafen, Papua New Guinea

place | 25km SE of Buli, Taiwan

place | 93km WSW of Jiquilillo, Nicaragua

place | 83km WSW of Chirovanga, Solomon Islands

place | 11km NNE of Banawa, Philippines

place | 87km SSW of Isangel, Vanuatu

place | South Pacific Ocean

place | 262km S of Muara Siberut, Indonesia

place | 11km NNW of Licuan, Philippines

place | 114km SSE of Katsuura, Japan

place | 12km SSW of Guabito, Panama

place | 211km N of Tamrida, Yemen

place | 8km ESE of Bejaia, Algeria

place | 19km NNE of Bulung'ur, Uzbekistan

place | 8km NNW of Buka, Uzbekistan

place | 9km NNW of Buka, Uzbekistan

place | 105km SSW of Kokopo, Papua New Guinea

place | 78km SW of Gerash, Iran

place | 143km ESE of Petropavlovsk-Kamchatskiy, Russia

place | 116km SSW of Ishigaki, Japan

place | 137km ESE of Petropavlovsk-Kamchatskiy, Russia

place | 120km E of Ust'-Kamchatsk Staryy, Russia

place | 95km SE of Minab, Iran

place | 92km SE of Minab, Iran

place | 50km NE of Namie, Japan

place | 70km NNE of Visokoi Island,

place | 82km NW of Riohacha, Colombia

place | 21km ESE of Taron, Papua New Guinea

place | 110km E of Maindong, China

place | 25km WSW of Taron, Papua New Guinea

place | 13km ESE of Ust'-Kamchatsk Staryy, Russia

place | 88km ENE of Shikotan, Russia

place | 65km ENE of Diego de Almagro, Chile

place | 58km SW of Puerto San Jose, Guatemala

place | 93km SSE of Minab, Iran

place | 81km ENE of Diego de Almagro, Chile

place | 29km SW of Nueva Concepcion, Guatemala

place | 197km S of Deputatskiy, Russia

place | 154km S of Cikawunggading, Indonesia

place | 236km ESE of Ishinomaki, Japan

place | 91km WSW of Firuzabad, Iran

place | 72km SW of Chimbote, Peru

place | 123km ENE of Bitung, Indonesia

place | 101km SW of Firuzabad, Iran

place | 59km WNW of Port-Vila, Vanuatu

place | 88km NNE of Sabang Indan, Philippines

place | 225km N of Scott Island Bank, Antarctica

place | 101km SSW of Ogotua, Indonesia

place | 38km WSW of Codrington, Barbuda

place | 29km ESE of Furnas, Portugal

place | 40km SW of Shagonar, Russia

place | 36km SW of Meulaboh, Indonesia

place | 11km ESE of Hasaki, Japan

place | East central Pacific Ocean

place | 51km SSE of Tanaga Volcano, Alaska

place | 66km SSE of Tanaga Volcano, Alaska

place | 114km ESE of Severo-Kuril'sk, Russia

place | 112km ESE of Severo-Kuril'sk, Russia

place | 164km ESE of Pagan, Northern Mariana Islands

place | 22km S of Changning, China

place | 15km S of Mehtar Lam, Afghanistan

place | 31km N of Rabaul, Papua New Guinea

place | 250km SW of Tomatlan, Mexico

place | 118km SE of Severo-Kuril'sk, Russia

place | 119km SE of Severo-Kuril'sk, Russia

place | 43km ENE of Kulun, China

place | 91km S of Semisopochnoi Island, Alaska

place | 20km NNW of La Union, Mexico

place | 25km SSW of Tanaga Volcano, Alaska

place | 45km WSW of Linqiong, China

place | 47km WSW of Linqiong, China

place | 97km SE of Severo-Kuril'sk, Russia

place | 148km WSW of Bouvet Island, Bouvet Island

place | 55km WSW of Linqiong, China

place | 225km SSE of Baing, Indonesia

place | 22km WNW of Port-Olry, Vanuatu

place | 51km NE of Yonakuni, Japan

place | 15km ENE of Ishinomaki, Japan

place | 47km NNE of Yonakuni, Japan

place | 9km NNE of Linao, Philippines

place | 92km SSE of Shimoda, Japan

place | 55km NNE of Yonakuni, Japan

place | 209km W of Abepura, Indonesia

place | 112km E of Khash, Iran

place | 23km WSW of Yuhu, China

place | 23km ESE of Aitape, Papua New Guinea

place | 88km SE of Muara Siberut, Indonesia

place | 72km S of Kotaagung, Indonesia

place | 125km SSW of Lata, Solomon Islands

place | 52km SSW of Motuo, China

place | 28km ENE of Namie, Japan

place | 29km NNW of Finschhafen, Papua New Guinea

place | 6km WNW of Sumoto, Japan

place | 120km WSW of Vaini, Tonga

place | 26km NNE of El Coacoyul, Mexico

place | 255km W of Nadi, Fiji

place | 51km ESE of Myaydo, Burma

place | 130km NW of Tobelo, Indonesia

place | 5km S of San Juan Pueblo, Honduras

place | 94km SE of Bandar Bushehr, Iran

place | 95km WSW of Firuzabad, Iran

place | 89km SE of Bandar Bushehr, Iran

place | 38km SSW of Panyaungan Timur, Indonesia

place | 112km NNE of Visokoi Island,

place | 176km ESE of Pagan, Northern Mariana Islands

place | 60km SE of Palaiochora, Greece

place | 240km E of Enarotali, Indonesia

place | 52km SE of Iwaki, Japan

place | 43km WNW of Taron, Papua New Guinea

place | 143km SSW of Padangsidempuan, Indonesia

place | 152km ENE of Hihifo, Tonga

place | 11km WNW of Atoyac de Alvarez, Mexico

place | 52km NE of Visokoi Island,

place | 18km NE of Baler, Philippines

place | 175km E of Raoul Island, New Zealand

place | 46km NNW of Husavik, Iceland

place | 23km SE of Ofunato, Japan

place | 203km ENE of Ceva-i-Ra, Fiji

place | 169km W of Ferndale, California

place | 60km WNW of Mogok, Burma

place | 142km SW of Merizo Village, Guam

place | 62km SW of Chimbote, Peru

place | 70km SW of Diwopu, China

place | 29km ESE of Buli, Taiwan

place | 26km SSW of Teberda, Russia

place | 16km NE of Tambulatana, Indonesia

place | 19km WSW of Santiago Pinotepa Nacional, Mexico

place | 19km SW of Santiago Pinotepa Nacional, Mexico

place | 287km SW of Panenggoede, Indonesia

place | 64km S of Bristol Island, South Sandwich Islands

place | 216km ESE of Hihifo, Tonga

place | 187km S of Lata, Solomon Islands

place | 167km NW of Ceva-i-Ra, Fiji

place | 62km ESE of Finschhafen, Papua New Guinea

place | Southwestern Atlantic Ocean

place | 259km ESE of Hihifo, Tonga

place | 238km ENE of Ceva-i-Ra, Fiji

place | 121km E of Bristol Island, South Sandwich Islands

place | 50km W of La Ligua, Chile

place | 61km NNW of Taltal, Chile

place | 46km ENE of Kandrian, Papua New Guinea

place | 53km WNW of Il'pyrskiy, Russia

place | 58km ESE of Finschhafen, Papua New Guinea

place | 60km ESE of Finschhafen, Papua New Guinea

place | 116km SW of Lata, Solomon Islands

place | 14km NE of Nichinan, Japan

place | 125km ENE of Arzak, China

place | 65km E of Finschhafen, Papua New Guinea

place | 32km E of Finschhafen, Papua New Guinea

place | 154km ESE of Modayag, Indonesia

place | 85km ENE of Severo-Kuril'sk, Russia

place | 139km ENE of `Ohonua, Tonga

place | 180km SSW of Leksula, Indonesia

place | 43km NNE of Salyan, Nepal

place | 107km W of Ile Hunter, New Caledonia

place | 137km ENE of L'Esperance Rock, New Zealand

place | 96km NNE of Nago, Japan

place | 134km WSW of Druzhina, Russia

place | 84km E of Severo-Kuril'sk, Russia

place | 28km NNE of Vanj, Tajikistan

place | 135km ENE of Angoram, Papua New Guinea

place | 150km S of Bristol Island, South Sandwich Islands

place | 24km SSW of Karimganj, India

place | 89km SE of Ozernovskiy, Russia

place | 93km SE of Ozernovskiy, Russia

place | 84km SE of Ozernovskiy, Russia

place | 104km W of Port-Vila, Vanuatu

place | 175km W of Bandon, Oregon

place | 116km E of Nago, Japan

place | 68km ESE of `Ohonua, Tonga

place | Southern Pacific Ocean

place | 197km SSE of Nishinoomote, Japan

place | 43km S of Lata, Solomon Islands

place | 260km NNE of Luring, China

place | 212km SE of Sigave, Wallis and Futuna

place | 189km E of Dili, East Timor

place | 44km S of Tanaga Volcano, Alaska

place | 140km SW of Lata, Solomon Islands

place | 208km E of Dili, East Timor

place | 41km SSW of Lata, Solomon Islands

place | 7km SSW of Huarancante, Peru

place | 45km SSE of Wairoa, New Zealand

place | 37km ESE of Lata, Solomon Islands

place | East of the Kuril Islands

place | 240km N of Chichi-shima, Japan

place | 20km S of Coahuayana, Mexico

place | 22km WSW of Coahuayana, Mexico

place | 207km SSE of Atka, Alaska

place | 52km E of Ohara, Japan

place | 56km SW of San Antonio, Chile

place | 15km S of Methoni, Greece

place | 35km S of Shikotan, Russia

place | 141km ESE of Pondaguitan, Philippines

place | 223km WNW of Pangai, Tonga

place | 120km SSW of Nabire, Indonesia

place | 137km WSW of Druzhina, Russia

place | 100km S of Sungaipenuh, Indonesia

place | 146km ENE of Amahai, Indonesia

place | 63km SE of Nishinoomote, Japan

place | 72km W of Tonopah, Nevada

place | 115km N of Saumlaki, Indonesia

place | 123km N of Saumlaki, Indonesia

place | 4km N of Lata, Solomon Islands

place | 265km WNW of Da Qaidam Hu, China

place | 105km ESE of Lata, Solomon Islands

place | 57km WNW of San Antonio, Chile

place | 46km WNW of San Antonio, Chile

place | 95km E of Lata, Solomon Islands

place | 26km SE of Iwaki, Japan

place | 35km SW of Pasarbaru, Indonesia

place | 150km SW of Ile Hunter, New Caledonia

place | 76km E of Lata, Solomon Islands

place | 69km E of Lata, Solomon Islands

place | 120km NNW of Lorengau, Papua New Guinea

place | 163km E of Hihifo, Tonga

place | 79km ENE of Lata, Solomon Islands

place | 51km ENE of Lata, Solomon Islands

place | 54km WNW of Lata, Solomon Islands

place | 53km WNW of Lata, Solomon Islands

place | 97km WNW of Naze, Japan

place | 135km ENE of Visokoi Island,

place | 252km N of Chichi-shima, Japan

place | 61km S of Taron, PNG

place | 43km ESE of Hualian, Taiwan

place | 32km WSW of Tugu Hilir, Indonesia

place | 41km SSW of Finschhafen, Papua New Guinea

place | 60km ENE of Lata, Solomon Islands

place | 94km SSE of Bengkulu, Indonesia

place | 56km NNE of Vallenar, Chile

place | 94km ENE of San Isidro, Philippines

place | 127km NNE of Dartang, China

place | 263km WNW of Bandon, Oregon

place | 60km SE of Kegen, Kazakhstan

place | southern East Pacific Rise

place | 82km W of Kuripan, Indonesia

place | 8km NW of Anakao, Madagascar

place | Russia-Kazakhstan-Xinjiang border region

place | off the coast of Aisen, Chile

place | 47km SSW of Sigli, Indonesia

place | 39km ENE of Kerman, Iran

place | 160km ENE of Ust'-Nera, Russia

place | Gulf of California

place | north of Ascension Island

place | off the west coast of northern Sumatra

place | southern Mid-Atlantic Ridge

place | Aegean Sea

place | Southeastern Alaska

place | 169km E of Hihifo, Tonga

place | Komandorskiye Ostrova, Russia region

place | offshore Maule, Chile

place | Black Sea, offshore Georgia

place | Pakistan

place | west of Macquarie Island

place | offshore Atacama, Chile

place | Turkey-Iran border region

place | off the east coast of Honshu, Japan

place | central East Pacific Rise

place | off the coast of El Salvador

place | off the west coast of Baja California

place | east of Severnaya Zemlya

place | eastern Iran

place | northern Algeria

place | offshore Libertador O'Higgins, Chile

place | south of Sumbawa, Indonesia

place | east of the South Sandwich Islands

place | southeast of Easter Island

place | Negros, Philippines

place | Haida Gwaii, Canada

place | off the coast of Ecuador

place | south of Australia

place | western Indian-Antarctic Ridge

place | Vancouver Island, Canada region

place | northwestern Iran

place | central Mid-Atlantic Ridge

place | Haida Gwaii Region, Canada

place | Cayman Islands region

place | Iceland region

place | Madhya Pradesh, India

place | near the coast of Guatemala

place | northern Mid-Atlantic Ridge

place | Assam, India

place | off the coast of Jalisco, Mexico

place | east of the Volcano Islands

place | Baja California Sur, Mexico

place | south of Africa

place | Greece

place | central Mediterranean Sea

place | northern Xinjiang, China

place | north of Severnaya Zemlya

place | Yunnan, China

place | Sichuan-Yunnan-Guizhou region, China

place | Gulf of Aden

place | Svalbard region

place | Galapagos Islands, Ecuador region

place | Jan Mayen Island region

place | offshore Bio-Bio, Chile

place | Virgin Islands region

place | Southern California

place | off the coast of Washington

place | northern East Pacific Rise

place | Xinjiang-Xizang border region

place | Revilla Gigedo Islands region

place | southwest of Africa

place | Turkey-Syria-Iraq border region

place | eastern Xizang

place | Ross Sea

place | north of Svalbard

place | Mauritius - Reunion region

place | Simeulue, Indonesia

place | offshore Northern California

place | eastern Mediterranean Sea

place | Isla Chiloe, Los Lagos, Chile

place | northeastern Iran

place | Sichuan-Yunnan border region, China

place | Gujarat, India

place | off the coast of Oregon

place | near the southeast coast of Australia

place | north of Franz Josef Land

place | southwestern Siberia, Russia

place | Antarctica

place | eastern Kazakhstan

place | northern Italy

place | Norwegian Sea

place | Bulgaria

place | Cyprus region

place | Gansu-Qinghai border region, China

place | Gansu-Nei Mongol border region, China

place | off the coast of Baja California Sur, Mexico

place | Baja California, Mexico

place | offshore Guerrero, Mexico

place | Tristan da Cunha region

place | Nepal-India border region

place | Chukotskiy Avtonomnyy Okrug, Russia

place | Comoros region

place | Haryana - Delhi region, India

place | central Iran

place | off the coast of Chiapas, Mexico

place | Bering Strait

place | Crozet Islands region

place | southeast Indian Ridge

place | Northern California

place | Mozambique

place | Papua region, Indonesia

place | Kyrgyzstan

place | near the west coast of Colombia

place | Lake Rudolf region, Kenya

place | northern Iran

place | off the coast of Araucania, Chile

place | Mona Passage, Puerto Rico

place | Azores Islands, Portugal

place | Western Australia

place | off the coast of Antofagasta, Chile

place | east of Barbuda, Leeward Islands

place | Panama-Costa Rica border region

place | Myanmar-China border region

place | Puerto Rico region

place | southwestern Sakha, Russia

place | eastern Turkey

place | Gansu, China

place | Sichuan-Gansu border region, China

place | near the coast of Antofagasta, Chile

place | Turkey-Iraq border region

place | Aisen, Chile

place | Palau region

place | southeast of Taiwan

place | Amurskaya Oblast', Russia

place | near the coast of Aisen, Chile

place | Sikkim, India

place | Cuba region

place | Auckland Islands, New Zealand region

place | North Atlantic Ocean

place | south of Panama

place | north of Macquarie Island

place | central Mongolia

place | Kashmir-India border region

place | northern Qinghai, China

place | Uttaranchal, India

place | western Mediterranean Sea

place | southern Qinghai, China

place | South Georgia Island region

place | Eritrea - Ethiopia region

place | D'Entrecasteaux Islands region

place | Xizang-Qinghai border region

place | northwest of Australia

place | western Sichuan, China

place | southern Pacific Ocean

place | Laos

place | Ethiopia

place | Lake Albert region, Uganda

place | near the north coast of Colombia

place | western Mongolia

place | southwestern Atlantic Ocean

place | South China Sea

place | off the coast of Michoacan, Mexico

place | Georgia (Sak'art'velo)

place | southwestern Pakistan

place | near the coast of Yemen

place | Ionian Sea

place | off the coast of Valparaiso, Chile

place | Djibouti region

place | Galapagos Triple Junction region

place | northern Alaska

place | Sibuyan Sea, Philippines

place | Lake Rudolf region, Kenya-Ethiopia

place | eastern Sichuan, China

place | Tocantins-Goias border region, Brazil

place | off the coast of Bio-Bio, Chile

place | Tucuman, Argentina

place | Los Lagos, Chile

place | offshore Nayarit, Mexico

place | Bangladesh

place | Kyrgyzstan-Tajikistan-Xinjiang border region

place | west of the Galapagos Islands

place | Kepulauan Aru region, Indonesia

place | Turkmenistan-Iran border region

place | Red Sea

place | Tanzania

place | Magadanskaya Oblast', Russia

place | Bering Sea

place | Gulf of Paria, Venezuela

place | off the coast of northern Peru

place | Ontario-Quebec border region, Canada

place | Lake Victoria region, Kenya

place | off the coast of Sinaloa, Mexico

place | Himachal Pradesh, India

place | southeast of the Ryukyu Islands, Japan

place | Timor Sea

place | Guadeloupe region, Leeward Islands

place | central Afghanistan

place | off the coast of Libertador O'Higgins, Chile

place | offshore Jalisco, Mexico

place | south of the Aleutian Islands

place | Lake Baykal region, Russia

place | offshore Araucania, Chile

place | Admiralty Islands region, Papua New Guinea

place | offshore Los Lagos, Chile

place | off the coast of Maule, Chile

place | northwest of New Zealand

place | north of Honduras

place | Shaanxi-Shanxi border region, China

place | east central Pacific Ocean

place | Haiti region

place | Bhutan

place | near the coast of Libya

place | west of Gibraltar

place | Xinjiang-Gansu border region, China

place | Malawi

place | Rodrigues region, Mauritius

place | east of Martinique, Windward Islands

place | Columbus Channel, Trinidad and Tobago

place | north of Panama

place | Lake Tanganyika region, Dem. Republic of the Congo-Tanzania

place | off the coast of Costa Rica

place | offshore Veracruz, Mexico

place | offshore Colima, Mexico

place | Kyrgyzstan-Xinjiang border region

place | Samoa Islands

place | near the north coast of Chukotskiy Avtonomnyy Okrug, Russia

place | offshore Carabobo, Venezuela

place | Albania

place | off the south coast of Australia

place | Black Sea

place | Sonora, Mexico

place | Namibia

place | Gulf of Alaska

place | Durango, Mexico

place | Baffin Bay

place | Panama

place | Turkey-Syria border region

place | offshore Honduras

place | Turkmenistan

place | north of Anguilla, Leeward Islands

place | Puebla, Mexico

place | western Saudi Arabia

place | eastern Uzbekistan

place | near the coast of southeastern Iran

place | Arctic Ocean

place | India-Pakistan border region

place | central Italy

place | Azores-Cape St. Vincent Ridge

place | Lake Victoria region, Tanzania

place | Kazakhstan-Xinjiang border region

place | near the south coast of Myanmar

place | off the coast of Pakistan

place | off the coast of Northern California

place | Democratic Republic of the Congo

place | central Turkey

place | Caucasus region, Russia

place | off the coast of Colima, Mexico

place | Northwest Territories, Canada

place | Maharashtra, India

place | Lake Tanganyika region

place | western Xizang-India border region

place | Russia-Mongolia border region

place | Greater Los Angeles area, California

place | Laptev Sea

place | northeastern Sakha, Russia

place | Golfe de Tadjoura, Djibouti

place | western Kazakhstan

place | Illinois

place | south of Alaska

place | off the coast of Los Lagos, Chile

place | North Pacific Ocean

place | Lebanon - Syria region

place | Rwanda

place | Lac Kivu region, Democratic Republic of the Congo

place | northern Yukon Territory, Canada

place | near the coast of Oaxaca, Mexico

place | eastern Kashmir

place | India-Bangladesh border region

place | San Francisco Bay area, California

place | Sulu Archipelago, Philippines

place | Galapagos Islands, Ecuador

place | off the coast of central Peru

place | Kerguelen Islands region

place | Bay of Bengal

place | Apure, Venezuela

place | Greece-Albania border region

place | northwest of Madagascar

place | Colombia-Venezuela border region

place | Lake Albert region, Congo-Uganda

place | Gulf of Mexico

place | Shikoku, Japan

place | Reunion region

place | near the east coast of Koryakskiy Avtonomnyy Okrug, Russia

place | Kalimantan, Indonesia

place | Islas Marias region, Nayarit, Mexico

place | British Columbia, Canada

place | southwest of Australia

place | offshore Baja California Sur, Mexico

place | Hawaii region, Hawaii

place | southeastern Sakha, Russia

place | Maui region, Hawaii

place | Gulf of Thailand

place | Christmas Island region, Australia

place | Mozambique Channel

place | Tokelau

place | Trujillo, Venezuela

place | south of Lombok, Indonesia

place | Zambia

place | northeast of Barbados, Windward Islands

place | French Guiana

place | Lake Edward region, Uganda

place | Koryakskiy Avtonomnyy Okrug, Russia

place | near the coast of Syria

place | Golfo de Venezuela

place | Hubei-Jiangxi border region, China

place | near the coast of western Turkey

place | Marshall Islands region

place | southwestern Kashmir

place | Bosnia and Herzegovina

place | Southern Yukon Territory, Canada

Séismes actuels - USGS
Site américain (USGS) donnant les séismes des 7 derniers jours et leurs caractéristiques (enregistrements toutes les 5 mn)
Attention si aucun point ne s'affiche, il faut rechercher dans une autre zone et (ou) zoomer davantage.

Legend

Magnitude 1

M 2.0 - 65km ENE of Gerlach-Empire, Nevada
Time
Location
Depth
Details from USGS web site
Google Earth KML layers for this event

M 2.0 - 15km E of Fernley, Nevada
Time
Location
Depth
Details from USGS web site
Google Earth KML layers for this event

M 2.0 - 15km ESE of Big Bear City, California
Time
Location
Depth
Details from USGS web site
Google Earth KML layers for this event

M 1.9 - 29km SW of Gabbs, Nevada

M 1.9 - 51km E of Beatty, Nevada

M 1.9 - 6km N of Sky Valley, California

M 1.9 - 27km NE of Soledad, California

M 1.9 - 45km SSE of Amatignak Island, Alaska

M 1.9 - 6km NW of The Geysers, California
DYFI? - I

M 1.9 - 99km ESE of Adak, Alaska

M 1.9 - 5km WSW of Volcano, Hawaii

M 1.9 - 20km SW of Tonasket, Washington

M 1.9 - 104km NW of Talkeetna, Alaska

M 1.9 Quarry Blast - 9km E of Amity, Oregon

M 1.9 - 11km ESE of Kalifornsky, Alaska

M 1.9 - 87km W of Willow, Alaska

M 1.9 - 22km ESE of Cohoe, Alaska

M 1.9 - 64km NW of Nikiski, Alaska
DYFI? - III

M 1.9 - 58km SW of Redoubt Volcano, Alaska

M 1.9 - 78km W of Cantwell, Alaska

M 1.9 - 45km SE of Tanaga Volcano, Alaska

M 1.9 - 1km N of The Geysers, California

M 1.9 - 8km NNE of East Foothills, California
DYFI? - III

M 1.9 - 13km NNE of Ivins, Utah

M 1.9 - 26km E of Honaunau-Napoopoo, Hawaii

M 1.9 - 8km SE of McCall, Idaho

M 1.9 - 31km SSW of Ferndale, California

M 1.9 - 6km NW of The Geysers, California

M 1.9 - 62km ENE of Whittier, Alaska

M 1.9 - 13km NE of Healy, Alaska

M 1.9 - 46km W of Willow, Alaska

M 1.9 - 10km NNW of Big Bear Lake, California

M 1.9 - 2km N of Loma Linda, California

M 1.9 - 3km NNW of Pasadena, California

M 1.9 - 63km WNW of Talkeetna, Alaska

M 1.9 - 52km W of Cantwell, Alaska

M 1.9 - 29km SW of Talkeetna, Alaska

M 1.9 - 33km NE of Amatignak Island, Alaska

M 1.9 - 26km WSW of Lompoc, California

M 1.9 - 73km NNE of Tonopah, Nevada

M 1.8 - 11km S of Joshua Tree, California

M 1.8 - 125km W of Cantwell, Alaska

M 1.8 - 8km WNW of The Geysers, California

M 1.8 - 26km ENE of King City, California

M 1.8 - 83km SSW of Redoubt Volcano, Alaska

M 1.8 - 37km SE of Cohoe, Alaska

M 1.8 - 5km NNW of Greeneville, Tennessee

M 1.8 - 4km ESE of The Geysers, California

M 1.8 - 46km NNE of Old Faithful Geyser, Wyoming

M 1.8 - 71km NW of Talkeetna, Alaska

M 1.8 - 79km W of Willow, Alaska

M 1.8 - 8km SW of Caruthersville, Missouri

M 1.8 - 18km NNW of Fishhook, Alaska

M 1.8 - 101km W of Talkeetna, Alaska

M 1.8 - 11km NNW of Challis, Idaho

M 1.8 - 11km N of Big Pine, California

M 1.8 - 141km SSE of Tok, Alaska

M 1.8 - 46km SW of Unalaska, Alaska

M 1.8 - 10km E of Helper, Utah

M 1.8 - 62km E of Sutton-Alpine, Alaska

M 1.8 - 21km W of Kalifornsky, Alaska

M 1.8 - 6km SW of Volcano, Hawaii

M 1.8 Quarry Blast - 8km SW of Connell, Washington

M 1.8 - 1km SW of Cobb, California

M 1.8 - 28km SSW of Morton, Washington

M 1.8 - 116km SSE of Old Iliamna, Alaska

M 1.8 - 44km SW of Nikolski, Alaska

M 1.8 - 64km WSW of Tanana, Alaska

M 1.8 - 32km W of Nikiski, Alaska

M 1.8 - 32km SSE of Redoubt Volcano, Alaska

M 1.8 - 40km ENE of Y, Alaska

M 1.8 - 6km S of Volcano, Hawaii

M 1.8 - 111km W of Talkeetna, Alaska

M 1.8 - 8km SE of McCall, Idaho

M 1.8 - 14km NE of Pahala, Hawaii

M 1.8 - 10km NNW of Redoubt Volcano, Alaska

M 1.8 - 2km ENE of Atwater, California

M 1.8 - 6km WNW of The Geysers, California

M 1.8 - 5km NW of The Geysers, California

M 1.8 - 24km WNW of Valdez, Alaska

M 1.8 - 12km NE of Willow, Alaska

M 1.8 - 24km SSE of Cohoe, Alaska

M 1.8 - 2km SSW of Redwood Valley, California

M 1.8 - 7km S of Volcano, Hawaii

M 1.8 - 10km ESE of Mammoth Lakes, California

M 1.8 - 119km NW of Talkeetna, Alaska

M 1.8 - 34km W of Talkeetna, Alaska

M 1.8 - 4km WNW of Cobb, California

M 1.8 - 3km W of San Juan Bautista, California

M 1.8 - 7km WSW of Adjuntas, Puerto Rico

M 1.8 - 5km SSE of Volcano, Hawaii

M 1.8 - 100km WNW of Cantwell, Alaska

M 1.8 - 43km NNW of Valdez, Alaska

M 1.8 - 10km ESE of Puebla, Mexico

M 1.8 - 163km NNE of Cape Yakataga, Alaska

M 1.8 - 9km WNW of Cobb, California

M 1.8 - 4km NNW of Sabana Grande, Puerto Rico

M 1.8 - 14km E of Fernley, Nevada

M 1.8 - 67km SSE of Avalon, California

M 1.8 - 22km SSW of La Quinta, California

M 1.7 - 22km SSE of Bodfish, California

M 1.7 - 43km N of China Lake Acres, California

M 1.7 - 93km NW of Nikiski, Alaska

M 1.7 - 7km W of Cobb, California

M 1.7 - 77km WSW of Anchor Point, Alaska

M 1.7 - 6km S of Volcano, Hawaii

M 1.7 - 72km S of Deltana, Alaska

M 1.7 - 106km NNE of Dawson, Canada

M 1.7 - 74km SSE of Atka, Alaska

M 1.7 - 4km ESE of Rosamond, California

M 1.7 - 44km SSW of Redoubt Volcano, Alaska

M 1.7 - 12km W of Dillon, Montana

M 1.7 - 62km NNW of Middleton Island, Alaska

M 1.7 - 8km NNE of East Foothills, California

M 1.7 - 14km ESE of Anchorage, Alaska

M 1.7 - 3km ENE of Gold Bar, Washington

M 1.7 - 45km S of Lone Pine, California

M 1.7 - 54km S of Redoubt Volcano, Alaska

M 1.7 - 72km SE of Whittier, Alaska

M 1.7 - 78km NW of Yakutat, Alaska

M 1.7 - 74km NNW of Talkeetna, Alaska

M 1.7 - 46km NNE of Old Faithful Geyser, Wyoming

M 1.7 - 105km WSW of Haines, Alaska

M 1.7 - 6km WNW of The Geysers, California

M 1.7 - 2km SE of Soldotna, Alaska

M 1.7 - 31km ENE of Honaunau-Napoopoo, Hawaii

M 1.7 - 182km NNE of Cape Yakataga, Alaska

M 1.7 - 181km NNE of Cape Yakataga, Alaska

M 1.7 - 100km N of Yakutat, Alaska

M 1.7 - 9km N of Cabazon, California

M 1.7 - 83km NNW of Talkeetna, Alaska

M 1.7 - 7km NNE of Tijuana, Mexico

M 1.7 - 6km N of Dyersburg, Tennessee

M 1.7 - 78km WSW of Cantwell, Alaska

M 1.7 - 63km N of Joshua Tree, California

M 1.7 - 0km E of The Geysers, California

M 1.7 - 14km WSW of Lakeport, California

M 1.7 - 9km WSW of Greenville, California

M 1.7 - 10km WNW of Cobb, California

M 1.7 - 3km ENE of Loma Linda, California

M 1.7 - 54km SW of Gerlach-Empire, Nevada

M 1.7 - 4km WNW of San Fernando, California

M 1.6 - 2km N of San Pedro, California

M 1.6 Quarry_blast - 15km NNE of Apple Valley, California

M 1.6 - 95km SE of Atka, Alaska

M 1.6 - 5km SE of The Geysers, California

M 1.6 Quarry Blast - 1km ENE of Granite Falls, Washington

M 1.6 - 18km SW of Willow, Alaska

M 1.6 - 62km E of Cape Yakataga, Alaska

M 1.6 - 36km W of Valdez, Alaska

M 1.6 - 59km ENE of Cape Yakataga, Alaska

M 1.6 - 36km S of Tanaga Volcano, Alaska

M 1.6 - 71km WNW of Willow, Alaska

M 1.6 - 15km NNW of Truckee, California

M 1.6 - 4km ESE of Mammoth Lakes, California

M 1.6 - 44km SW of Homer, Alaska

M 1.6 - 90km ENE of Sutton-Alpine, Alaska

M 1.6 - 14km NNE of Covelo, California

M 1.6 - 28km WSW of Big Lake, Alaska

M 1.6 - 59km ESE of Whittier, Alaska

M 1.6 - 11km SE of Chester, California
DYFI? - I

M 1.6 - 11km ENE of Cloverdale, California

M 1.6 - 103km WNW of Talkeetna, Alaska

M 1.6 - 89km WSW of Cantwell, Alaska

M 1.6 - 97km NNW of Nikiski, Alaska

M 1.6 - 44km SW of Tremonton, Utah

M 1.6 - 87km WSW of Cantwell, Alaska

M 1.6 - 6km NNW of Volcano, Hawaii

M 1.6 - 85km NNW of Talkeetna, Alaska

M 1.6 - 51km WSW of Valdez, Alaska

M 1.6 - 79km E of Cantwell, Alaska

M 1.6 - 32km NNW of Nikiski, Alaska

M 1.6 - 44km NW of Larsen Bay, Alaska

M 1.6 - 22km SSE of Bodfish, California

M 1.6 - 3km E of El Cerrito, California

M 1.6 - 9km WSW of Avenal, California

M 1.6 - 8km WSW of Avenal, California

M 1.6 - 22km SE of Mammoth Lakes, California

M 1.6 - 3km W of San Juan Bautista, California

M 1.6 - 51km E of Lazy Mountain, Alaska

M 1.6 - 30km NNW of Sutton-Alpine, Alaska

M 1.6 - 26km ENE of Pine Valley, California

M 1.6 - 14km ENE of Anza, California

M 1.6 - 39km S of Manley Hot Springs, Alaska

M 1.6 - 38km W of Big Lake, Alaska

M 1.6 - 82km WSW of Unalaska, Alaska

M 1.6 - 48km S of Lone Pine, California

M 1.6 - 21km S of Y, Alaska

M 1.6 - 12km S of Joshua Tree, California

M 1.6 - 40km WNW of Goldfield, Nevada

M 1.5 - 14km E of Julian, California

M 1.5 - 6km NNW of Stagecoach, Nevada

M 1.5 - 1km SSE of Yucca Valley, California

M 1.5 - 21km SSE of Bodfish, California

M 1.5 - 26km ENE of Pine Valley, California

M 1.5 - 19km S of Weldon, California

M 1.5 - 14km E of Fernley, Nevada

M 1.5 - 96km NW of Gustavus, Alaska

M 1.5 - 62km NW of Nikiski, Alaska

M 1.5 Quarry_blast - 6km SE of Bonita, California

M 1.5 - 26km WNW of Willow, Alaska

M 1.5 - 57km W of Anchor Point, Alaska

M 1.5 - 102km SSW of Atka, Alaska

M 1.5 - 11km WSW of Cullowhee, North Carolina

M 1.5 - 49km NNW of Larsen Bay, Alaska

M 1.5 - 27km E of Healy, Alaska

M 1.5 - 31km N of Seeley Lake, Montana

M 1.5 - 8km SSW of Willow, Alaska

M 1.5 - 64km WNW of Valdez, Alaska

M 1.5 - 4km ESE of Mammoth Lakes, California

M 1.5 - 24km WNW of Anchor Point, Alaska

M 1.5 - 44km NNW of Searles Valley, California

M 1.5 - 30km ENE of Honaunau-Napoopoo, Hawaii

M 1.5 - 18km SW of Unalaska, Alaska

M 1.5 Quarry Blast - 4km ENE of Abbotsford, Canada

M 1.5 - 23km NW of Glennallen, Alaska

M 1.5 - 6km N of East Carbon City, Utah

M 1.5 - 64km NNE of Sutton-Alpine, Alaska

M 1.5 - 33km ENE of Soledad, California

M 1.5 - 8km ENE of Gilroy, California

M 1.5 - 23km N of Borrego Springs, California

M 1.5 - 6km S of Talkeetna, Alaska

M 1.5 - 61km NNW of Nikiski, Alaska

M 1.5 - 11km WNW of Daly City, California

M 1.5 - 5km W of Fishhook, Alaska

M 1.5 - 4km ENE of Gold Bar, Washington

M 1.5 - 87km E of Bear Creek, Alaska

M 1.5 - 69km NNE of Sutton-Alpine, Alaska

M 1.5 - 10km NNW of Meadow Lakes, Alaska

M 1.5 - 45km NNW of Inyokern, California

M 1.5 - 30km WNW of Nikiski, Alaska

M 1.5 - 7km WSW of Avenal, California

M 1.5 - 51km S of Lone Pine, California

M 1.5 - 7km N of Brawley, California

M 1.5 - 20km SW of Healy, Alaska

M 1.5 - 35km WNW of Cantwell, Alaska

M 1.5 - 50km SSE of Tanaga Volcano, Alaska

M 1.5 - 19km NNW of Julian, California

M 1.5 - 35km NNW of Whittier, Alaska

M 1.5 - 5km NE of Verdi, Nevada

M 1.5 - 63km S of Beatty, Nevada

M 1.5 - 57km W of Goldfield, Nevada

M 1.5 - 21km S of Gardnerville Ranchos, Nevada

M 1.4 - 2km N of Muscoy, California

M 1.4 - 7km SSW of Mammoth Lakes, California

M 1.4 - 22km N of Anchor Point, Alaska

M 1.4 - 67km SSE of Circle Hot Springs Station, Alaska

M 1.4 - 31km SSW of Redoubt Volcano, Alaska

M 1.4 - 44km WNW of Nikiski, Alaska

M 1.4 - 120km SSE of Tok, Alaska

M 1.4 - 8km SSW of Ridgemark, California

M 1.4 - 29km SSE of Cape Yakataga, Alaska

M 1.4 - 94km WNW of Atka, Alaska

M 1.4 - 13km SE of Lincoln, Montana

M 1.4 - 56km E of Cape Yakataga, Alaska

M 1.4 - 14km SE of Redoubt Volcano, Alaska

M 1.4 - 49km NNE of Yakutat, Alaska

M 1.4 - 5km NNE of Meadow Lakes, Alaska

M 1.4 - 12km N of Ridgeway, Alaska

M 1.4 - 47km N of Valdez, Alaska

M 1.4 - 64km NE of Whittier, Alaska

M 1.4 - 93km ENE of Sutton-Alpine, Alaska

M 1.4 - 9km N of Cloverdale, California

M 1.4 - 12km W of Dillon, Montana

M 1.4 - 5km ESE of Glennallen, Alaska

M 1.4 - 34km NNW of Anchor Point, Alaska

M 1.4 - 56km NNE of Sutton-Alpine, Alaska

M 1.4 - 42km WSW of Big Lake, Alaska

M 1.4 - 2km SW of Barstow Heights, California

M 1.4 - 7km SSE of Gilroy, California

M 1.4 - 31km E of Old Faithful Geyser, Wyoming

M 1.4 - 10km W of Kalifornsky, Alaska

M 1.4 - 62km NNE of Talkeetna, Alaska

M 1.4 - 23km NNE of Badger, Alaska

M 1.4 - 18km SW of La Quinta, California

M 1.4 - 18km SSW of Healy, Alaska

M 1.4 - 14km S of Ridgemark, California

M 1.4 - 22km SE of Mammoth Lakes, California

M 1.4 - 3km SSW of Volcano, Hawaii

M 1.4 - 5km NNW of The Geysers, California

M 1.4 - 18km E of Healy, Alaska

M 1.4 - 21km NNE of Soledad, California

M 1.4 - 45km N of Inyokern, California

M 1.4 - 150km WNW of Haines Junction, Canada

M 1.4 - 5km W of Cobb, California

M 1.4 - 67km WNW of Healy, Alaska

M 1.4 - 3km NNW of Lake Isabella, California

M 1.4 - 64km SE of Whittier, Alaska

M 1.4 - 36km N of Nikiski, Alaska

M 1.4 - 5km ENE of View Park-Windsor Hills, California

M 1.4 - 44km NNW of Searles Valley, California

M 1.3 Quarry_blast - 2km ESE of El Cerrito, California

M 1.3 - 5km ESE of Valle Vista, California

M 1.3 - 39km SSE of Goldfield, Nevada

M 1.3 - 10km SE of Stallion Springs, California

M 1.3 - 44km NNW of Searles Valley, California

M 1.3 - 36km NNE of Whittier, Alaska

M 1.3 - 35km WSW of Y, Alaska

M 1.3 - 37km NW of Willow, Alaska

M 1.3 - 5km WNW of Pahala, Hawaii

M 1.3 - 41km NNW of Anchor Point, Alaska

M 1.3 - 5km NE of Santa Margarita, California

M 1.3 - 75km ENE of Cantwell, Alaska

M 1.3 - 103km SSW of Atka, Alaska

M 1.3 - 14km NE of Y, Alaska

M 1.3 - 56km WNW of Cantwell, Alaska

M 1.3 - 38km NNE of Eielson Air Force Base, Alaska

M 1.3 - 12km WSW of Dillon, Montana

M 1.3 - 17km ENE of Fairview, Utah

M 1.3 - 21km NNE of Badger, Alaska

M 1.3 - 177km E of Chitina, Alaska

M 1.3 - 44km SW of Healy, Alaska

M 1.3 - 14km WNW of West Bishop, California

M 1.3 - 13km W of Dillon, Montana

M 1.3 - 43km N of Sutton-Alpine, Alaska

M 1.3 - 25km WSW of Coalinga, California

M 1.3 - 20km SSW of Y, Alaska

M 1.3 - 7km SW of Sterling, Alaska

M 1.3 - 26km NE of Soledad, California

M 1.3 - 2km NE of The Geysers, California

M 1.3 - 17km E of Nikiski, Alaska

M 1.3 - 3km SE of Mentone, California

M 1.3 - 21km NW of Borrego Springs, California

M 1.3 - 16km ESE of Anza, California

M 1.3 - 15km N of North Nenana, Alaska

M 1.3 - 7km WNW of Lake Elsinore, California

M 1.3 - 1km ESE of Redlands, California

M 1.3 - 3km SW of Lexington Hills, California

M 1.3 - 50km SSE of Deltana, Alaska

M 1.3 - 6km SE of Lake Isabella, California

M 1.3 - 6km WSW of Talkeetna, Alaska

M 1.3 - 21km N of Yucca Valley, California

M 1.3 - 76km WSW of North Nenana, Alaska

M 1.3 - 22km NNW of Sutton-Alpine, Alaska

M 1.3 - 14km SSW of Salton City, California

M 1.3 - 28km E of Yerington, Nevada

M 1.3 - 7km WSW of Calipatria, California

M 1.2 - 4km NE of San Antonio Heights, California

M 1.2 - 5km NNE of Lake Isabella, California

M 1.2 - 47km ENE of Y, Alaska

M 1.2 - 12km NNW of Sterling, Alaska

M 1.2 - 96km SW of Atka, Alaska

M 1.2 - 61km S of Deltana, Alaska

M 1.2 - 12km WNW of Y, Alaska

M 1.2 - 11km N of Healy, Alaska

M 1.2 - 10km N of Ridgeway, Alaska

M 1.2 - 27km WNW of West Bishop, California

M 1.2 - 77km ENE of Cape Yakataga, Alaska

M 1.2 - 6km SSE of Gilroy, California

M 1.2 - 52km ESE of Lazy Mountain, Alaska

M 1.2 - 3km NW of Cobb, California

M 1.2 - 54km N of Valdez, Alaska

M 1.2 - 140km ENE of Chitina, Alaska

M 1.2 - 18km NNE of West Yellowstone, Montana

M 1.2 - 47km WSW of Willow, Alaska

M 1.2 - 3km ESE of Loma Linda, California

M 1.2 - 177km E of Chitina, Alaska

M 1.2 - 7km SSW of Mammoth Lakes, California

M 1.2 - 27km N of North Nenana, Alaska

M 1.2 - 39km ESE of Cantwell, Alaska

M 1.2 - 1km SSW of The Geysers, California

M 1.2 - 4km SE of The Geysers, California

M 1.2 - 56km NW of Ester, Alaska

M 1.2 - 46km ENE of Y, Alaska

M 1.2 - 26km NNW of North Nenana, Alaska

M 1.2 - 3km ESE of Molalla, Oregon

M 1.2 - 5km W of Cobb, California

M 1.2 - 21km S of Butte, Alaska

M 1.2 - 36km E of Lazy Mountain, Alaska

M 1.2 - 4km NE of Meadow Lakes, Alaska

M 1.2 - 40km NE of Nikiski, Alaska

M 1.2 - 52km E of Lima, Montana

M 1.2 - 2km ESE of The Geysers, California

M 1.2 - 65km SW of Cantwell, Alaska

M 1.2 - 16km N of Pahala, Hawaii

M 1.2 - 18km SE of Mammoth Lakes, California

M 1.2 - 21km NE of Fairbanks, Alaska

M 1.2 - 10km SSE of Granite Falls, Washington

M 1.2 - 16km ESE of Anza, California

M 1.2 - 9km WNW of Calipatria, California

M 1.2 - 9km ENE of Milpitas, California

M 1.2 - 5km NNW of Lakeview, California

M 1.2 - 7km NNW of Brawley, California

M 1.2 - 8km SW of Idyllwild-Pine Cove, California

M 1.2 - 4km SE of Loma Linda, California

M 1.2 - 57km SW of Cantwell, Alaska

M 1.2 - 22km ESE of Anza, California

M 1.1 - 26km ENE of Pine Valley, California

M 1.1 - 39km SSE of Goldfield, Nevada

M 1.1 - 9km ENE of Cabazon, California

M 1.1 - 54km S of Park Valley, Utah

M 1.1 - 47km ENE of Cape Yakataga, Alaska

M 1.1 - 135km NE of Cape Yakataga, Alaska

M 1.1 - 45km NNE of Nikiski, Alaska

M 1.1 - 1km NNE of The Geysers, California

M 1.1 - 5km SE of The Geysers, California

M 1.1 - 4km ENE of Alameda, California

M 1.1 - 15km W of North Nenana, Alaska

M 1.1 - 35km ENE of Fritz Creek, Alaska

M 1.1 - 3km E of Mammoth Lakes, California

M 1.1 - 22km NNE of Fairbanks, Alaska

M 1.1 - 3km E of The Geysers, California

M 1.1 - 21km SE of Yosemite Valley, California

M 1.1 - 40km SSW of Cantwell, Alaska

M 1.1 - 23km SW of Coalinga, California

M 1.1 - 8km ESE of Yelm, Washington

M 1.1 - 9km NNW of Big Bear City, California

M 1.1 Quarry Blast - 12km S of Shelton, Washington

M 1.1 - 5km SW of Lake Arrowhead, California

M 1.1 - 15km NNW of Truckee, California

M 1.1 - 12km WSW of Big Lake, Alaska

M 1.1 - 30km S of Hawthorne, Nevada

M 1.1 - 71km E of Cantwell, Alaska

M 1.1 - 30km N of Talkeetna, Alaska

M 1.1 - 10km NNE of North Nenana, Alaska

M 1.1 - 9km NE of Indio, California

M 1.1 - 14km N of Borrego Springs, California

M 1.1 - 2km SW of Cabazon, California

M 1.1 - 14km SE of Anza, California

M 1.1 - 3km NW of Cobb, California

M 1.1 - 10km ENE of Milpitas, California

M 1.1 - 4km SW of Idyllwild-Pine Cove, California

M 1.1 - 40km SSW of Salcha, Alaska

M 1.1 - 2km SSW of Anza, California

M 1.1 - 6km NNE of Borrego Springs, California

M 1.1 - 1km NNW of The Geysers, California

M 1.1 - 38km NW of Searles Valley, California

M 1.1 - 0km NNW of Beaumont, California

M 1.1 - 7km WSW of Calipatria, California

M 1.1 - 4km NNE of Westmorland, California

M 1.1 - 17km SSE of Big Bear Lake, California

M 1.1 - 19km SSE of Aguanga, California

M 1.0 - 62km WSW of Alamo, Nevada

M 1.0 Quarry_blast - 3km W of Escondido, California

M 1.0 - 4km NE of San Antonio Heights, California

M 1.0 - 3km N of Tacoma, Washington

M 1.0 - 85km ENE of Sutton-Alpine, Alaska

M 1.0 - 26km NE of Soledad, California

M 1.0 - 23km NNW of Shelton, Washington

M 1.0 - 6km WSW of Middletown, California

M 1.0 - 21km N of Amboy, Washington

M 1.0 - 12km NNE of Cabazon, California

M 1.0 - 59km S of Deltana, Alaska

M 1.0 - 35km E of Lazy Mountain, Alaska

M 1.0 - 109km WNW of Talkeetna, Alaska

M 1.0 - 17km SSW of Duncan, Canada

M 1.0 - 6km ESE of Monroe, Utah

M 1.0 - 12km SSW of Aguanga, California

M 1.0 - 22km WSW of Ferron, Utah

M 1.0 - 2km NE of The Geysers, California

M 1.0 - 14km ESE of Alum Rock, California

M 1.0 - 19km NNE of West Yellowstone, Montana

M 1.0 - 1km NNW of The Geysers, California

M 1.0 - 21km WNW of Lincoln, Montana

M 1.0 - 65km S of Cantwell, Alaska

M 1.0 - 15km E of Seven Trees, California

M 1.0 - 91km WSW of Healy, Alaska

M 1.0 Quarry Blast - 2km N of Mount Hood Village, Oregon

M 1.0 - 22km NNE of Badger, Alaska

M 1.0 - 14km ENE of La Pine, Oregon

M 1.0 - 5km SSW of Gilroy, California

M 1.0 - 14km WNW of Tieton, Washington

M 1.0 - 3km WNW of North Pole, Alaska

M 1.0 - 6km N of Borrego Springs, California

M 1.0 - 3km W of San Juan Bautista, California

M 1.0 - 4km WSW of Yucaipa, California

Magnitude 2

M 2.9 - 28km WNW of Rincon, Puerto Rico

M 2.9 - 46km SE of Road Town, British Virgin Islands

M 2.9 - 10km SSW of Loyola, California
DYFI? - III

DYFI? - IV

M 2.9 - 30km NW of Anchor Point, Alaska
DYFI? - I

M 2.8 - 155km E of Chirikof Island, Alaska

M 2.8 - 11km SSE of Wildwood Lake, Tennessee
DYFI? - V

M 2.8 - 17km S of Ucluelet, Canada

M 2.8 - 47km SW of Chignik Lake, Alaska

M 2.8 - 47km NNW of Charlotte Amalie, U.S. Virgin Islands

M 2.8 - 22km SSW of Cantwell, Alaska

M 2.8 - 5km NW of Helena, Oklahoma

M 2.8 - 5km SW of Volcano, Hawaii

M 2.8 - 2km SSW of Springtown, Texas
DYFI? - IV

M 2.8 - 9km WNW of Greenville, California
DYFI? - II

M 2.8 - 73km N of Road Town, British Virgin Islands

M 2.8 - 66km N of Road Town, British Virgin Islands

M 2.8 - 62km N of Road Town, British Virgin Islands

M 2.8 - 3km ESE of The Geysers, California

M 2.8 - 4km S of Malibu Beach, California

M 2.7 - 41km NNE of Road Town, British Virgin Islands

M 2.7 - 12km NNE of Summit Park, Utah

M 2.7 - 2km E of Azle, Texas

M 2.7 - 67km NNE of Kodiak, Alaska

M 2.7 - 88km SSW of Homer, Alaska

M 2.7 - 68km NNE of Road Town, British Virgin Islands

M 2.7 - 44km SSW of Cantwell, Alaska

M 2.7 - 10km NE of Little Sitkin Island, Alaska

M 2.7 - 42km S of Tanaga Volcano, Alaska

M 2.7 - 50km SE of Old Iliamna, Alaska

M 2.7 - 43km SE of Esperanza, Puerto Rico

M 2.7 - 10km S of Morovis, Puerto Rico
DYFI? - II

M 2.7 - 19km WNW of Cedar City, Utah

M 2.7 - 3km N of Muscoy, California

M 2.6 - 208km SE of Akutan, Alaska

M 2.6 - 6km SW of Trinidad, Colorado

M 2.6 - 116km WSW of Amatignak Island, Alaska

M 2.6 - 41km WSW of Haines, Alaska

M 2.6 - 9km ENE of Cottonwood, California
DYFI? - II

M 2.6 - 212km SE of Akutan, Alaska

M 2.6 - 49km NE of Road Town, British Virgin Islands

M 2.6 - 6km SSW of Pottsboro, Texas

M 2.6 - 13km W of Greenville, California

M 2.6 - 11km NE of Whitesboro, Texas

M 2.6 - 42km NNE of Squaw Valley, California

M 2.6 - 45km SSW of Keokea, Hawaii

M 2.6 - 46km NNE of Road Town, British Virgin Islands

M 2.6 - 29km NNW of Road Town, British Virgin Islands

M 2.6 - 31km E of Barstow, California

M 2.5 - 9km N of Spencer, Oklahoma

M 2.5 - 10km SE of McCall, Idaho

M 2.5 - 5km SSW of Pottsboro, Texas

M 2.5 - 33km SSE of Boca de Yuma, Dominican Republic

M 2.5 - 20km ENE of Road Town, British Virgin Islands

M 2.5 - 11km SSE of Cherokee, Oklahoma

M 2.5 - 123km SSE of Old Iliamna, Alaska

M 2.4 - 35km SSW of Atka, Alaska

M 2.4 - 21km SW of Redoubt Volcano, Alaska

M 2.4 - 111km SSW of Kaktovik, Alaska

M 2.4 - 1km N of Luther, Oklahoma
DYFI? - IV

M 2.4 Quarry Blast - 5km NNW of Burns, Oregon

M 2.4 - 40km E of Cape Yakataga, Alaska

M 2.4 - 15km NNE of Semisopochnoi Island, Alaska

M 2.4 Quarry Blast - 2km N of Princeton, Canada

M 2.4 - 4km ESE of Leilani Estates, Hawaii

M 2.4 - 34km SSW of Ferndale, California

M 2.3 - 29km WNW of Bear Creek, Alaska

M 2.3 - 60km ENE of Road Town, British Virgin Islands

M 2.3 - 8km SE of Edmond, Oklahoma

M 2.3 - 38km N of Nikiski, Alaska

M 2.3 - 33km N of Amatignak Island, Alaska

M 2.3 - 3km N of Anchor Point, Alaska

M 2.3 - 218km NNW of Tanaga Volcano, Alaska

M 2.3 - 45km SW of Talkeetna, Alaska

M 2.3 - 2km NW of Hormigueros, Puerto Rico

M 2.3 Quarry Blast - 9km NNW of Oroville, California

M 2.3 - 28km SSE of Redoubt Volcano, Alaska

M 2.3 - 17km SSW of Rancho Palos Verdes, California

M 2.3 - 12km NW of Avenal, California

M 2.3 - 141km NE of Chignik Lake, Alaska

M 2.3 - 32km NNE of Nikiski, Alaska

M 2.3 - 15km NNW of Waikoloa Village, Hawaii

M 2.3 - 0km NE of The Geysers, California

M 2.2 - 58km N of Joshua Tree, California

M 2.2 - 7km WSW of Leilani Estates, Hawaii

M 2.2 - 14km SSE of Volcano, Hawaii

M 2.2 - 7km S of Laytonville, California

M 2.2 - 113km ENE of Chignik Lake, Alaska

M 2.2 - 2km SSW of Idaho City, Idaho

M 2.2 - 16km SE of Volcano, Hawaii

M 2.2 - 14km WNW of West Bishop, California

M 2.2 Quarry Blast - 28km WSW of Cheney, Washington

M 2.2 - 26km E of Redoubt Volcano, Alaska

M 2.2 - 14km ESE of Healy, Alaska

M 2.2 Quarry Blast - 5km S of Princeton, Canada

M 2.2 - 11km NNW of Seabeck, Washington

M 2.2 - 1km WNW of Hormigueros, Puerto Rico

M 2.2 - 15km NW of Fishhook, Alaska

M 2.2 - 45km WSW of Cohoe, Alaska

M 2.1 - 26km ENE of King City, California

M 2.1 - 24km NNE of Redway, California

M 2.1 - 54km SSE of Deltana, Alaska

M 2.1 - 28km W of Polson, Montana

M 2.1 - 27km SSW of Morton, Washington

M 2.1 - 26km W of Puerto Real, Puerto Rico

M 2.1 - 85km E of Old Iliamna, Alaska

M 2.1 - 43km E of Sutton-Alpine, Alaska

M 2.1 - 49km NE of Road Town, British Virgin Islands

M 2.1 Quarry Blast - 7km S of Princeton, Canada

M 2.1 - 21km SSW of Salton City, California

M 2.1 - 2km SSW of Cobb, California

M 2.1 - 10km ENE of Edmond, Oklahoma

M 2.1 - 7km SW of Firebaugh, California

M 2.1 - 11km SSE of Alpine, California

M 2.0 - 13km NNE of Nipomo, California

M 2.0 - 49km ENE of Ensenada, Mexico

M 2.0 - 25km NW of Larsen Bay, Alaska

M 2.0 - 31km W of Anchor Point, Alaska

M 2.0 - 16km SSE of Ridgemark, California

M 2.0 - 101km SW of Larsen Bay, Alaska

M 2.0 - 107km NNE of Chirikof Island, Alaska

M 2.0 - 16km S of Honoka'a, Hawaii

M 2.0 - 1km NW of Mountlake Terrace, Washington

M 2.0 - 30km NNW of Volcano, Hawaii

M 2.0 - 63km ESE of Atka, Alaska

M 2.0 - 51km SSW of Unalaska, Alaska

M 2.0 - 87km SE of Akutan, Alaska

M 2.0 - 6km ESE of Willits, California

M 2.0 - 5km W of Sparta, Georgia

M 2.0 - 119km SSE of Old Iliamna, Alaska

M 2.0 - 32km SW of Ferndale, California

M 2.0 - 60km ENE of Cantwell, Alaska

M 2.0 - 18km WSW of Cohoe, Alaska

M 2.0 - 33km NE of Redwood Valley, California

M 2.0 - 71km E of Old Iliamna, Alaska

M 2.0 - 8km NNE of Tanner, Washington

M 2.0 - 68km W of Anchor Point, Alaska

M 2.0 - 6km NNW of Meadow Lakes, Alaska

M 2.0 - 55km WNW of Willow, Alaska

M 2.0 - 9km SW of Avenal, California

M 2.0 - 32km SSW of Ferndale, California

M 2.0 - 48km NW of Willow, Alaska

M 2.0 - 4km NNW of Circle Hot Springs Station, Alaska

M 2.0 - 34km SE of Cohoe, Alaska

Magnitude 3

M 3.8 - 117km S of Boca de Yuma, Dominican Republic

M 3.8 - 20km ESE of Punta Cana, Dominican Republic

M 3.8 - 102km S of Kodiak Station, Alaska
PAGER - GREEN ShakeMap - IV

M 3.7 - 17km NNE of Mineral Wells, Texas
ShakeMap - IV DYFI? - IV

M 3.6 - 99km NE of Punta Cana, Dominican Republic

M 3.6 - 103km S of Kodiak Station, Alaska

M 3.6 - 89km NE of Road Town, British Virgin Islands

M 3.5 - 6km S of Hopital-Camfrout, France

M 3.5 - 16km ENE of Custer, South Dakota
ShakeMap - IV DYFI? - III

M 3.5 - 94km N of Larsen Bay, Alaska

M 3.4 - 213km SSE of Akutan, Alaska

M 3.4 - 25km SSE of Baie-Saint-Paul, Canada

M 3.4 - 38km ESE of Redoubt Volcano, Alaska

M 3.4 - 87km NNE of Punta Cana, Dominican Republic

M 3.4 - 9km NE of La Romana, Dominican Republic

M 3.3 - 32km N of Charlotte Amalie, U.S. Virgin Islands

M 3.3 - 134km NNE of Vieques, Puerto Rico

M 3.3 - 127km NNE of Punta Cana, Dominican Republic

M 3.3 - 52km NW of Atka, Alaska

M 3.2 - 15km S of Fern Acres, Hawaii

M 3.2 - 40km SE of Boca de Yuma, Dominican Republic

M 3.2 - 115km NNE of Vieques, Puerto Rico

M 3.1 - 92km N of Charlotte Amalie, U.S. Virgin Islands

M 3.0 - 36km SSE of Cold Bay, Alaska

M 3.0 - 35km SSW of Akutan, Alaska

M 3.0 - 114km S of False Pass, Alaska

M 3.0 - 51km NNW of San Antonio, Puerto Rico

M 4.9 - 194km E of Farallon de Pajaros, Northern Mariana Islands

M 4.9 - 255km NNW of Pubu, China

M 4.9 - 140km ENE of Flying Fish Cove, Christmas Island

M 4.9 - 44km SSE of Antofagasta, Chile

M 4.9 - 23km WNW of Las Lajitas, Argentina

M 4.9 - Scotia Sea

M 4.9 - 216km SW of Biha, Indonesia

M 4.9 - 158km S of Severo-Kuril'sk, Russia

M 4.9 - 60km NNE of Port-Vila, Vanuatu

M 4.9 - 82km ENE of Ndoi Island, Fiji

M 4.8 - 4km NE of Barcelona, Philippines

M 4.8 - 36km NW of `Alaqahdari-ye Kiran wa Munjan, Afghanistan

M 4.8 - 168km S of Ust'-Kamchatsk Staryy, Russia

M 4.8 - 69km NE of L'Esperance Rock, New Zealand

M 4.8 - 150km S of Severo-Kuril'sk, Russia

M 4.8 - 48km ENE of Kushiro, Japan

M 4.8 - West of Macquarie Island

M 4.7 - 171km NNW of Da Qaidam Hu, China

M 4.7 - Crozet Islands region

M 4.7 - 66km SSW of Methoni, Greece

M 4.7 - 105km SSW of Puerto El Triunfo, El Salvador

M 4.7 - 13km WNW of Nishinoomote, Japan

M 4.7 - 6km SSE of Domokos, Greece

M 4.7 - 96km SSE of Raoul Island, New Zealand

M 4.7 - 183km ENE of Dolinsk, Russia

M 4.7 - 28km SSW of Ovalle, Chile

M 4.7 - 110km ESE of Kitaibaraki, Japan

M 4.7 - 124km WNW of Tofino, Canada

M 4.6 - 4km S of Spuz, Montenegro

M 4.6 - 198km SE of Pondaguitan, Philippines

M 4.6 - 201km SSE of Sigave, Wallis and Futuna

M 4.6 - 0km SW of Karangpete, Indonesia

M 4.6 - Fiji region

M 4.6 - 68km SE of Buldir Island, Alaska

M 4.6 - 38km S of Pondaguitan, Philippines

M 4.6 - 251km S of Ndoi Island, Fiji

M 4.6 - 284km WNW of Saumlaki, Indonesia

M 4.5 - 46km SW of Cayhagan, Philippines

M 4.5 - 60km SW of Bilungala, Indonesia

M 4.5 - 55km W of Chernabura Island, Alaska

M 4.5 - 28km E of Barkhan, Pakistan

M 4.5 - 82km NE of Opotiki, New Zealand

M 4.5 - 44km SE of Soe, Indonesia

M 4.5 - 16km NNW of Garisul, Indonesia

M 4.5 - 99km SE of Molibagu, Indonesia

M 4.5 - 102km SE of Pondaguitan, Philippines

M 4.5 - 37km SSE of Amukta Island, Alaska
ShakeMap - IV

M 4.5 - 104km SSE of Shizunai, Japan

M 4.4 - 85km ENE of Shughnon, Tajikistan

M 4.4 - 10km WSW of San Andres, Colombia

M 4.4 - 7km SSW of Sindangsari, Indonesia

M 4.4 - 50km W of Puerto Madero, Mexico

M 4.4 - 93km W of El Aguilar, Argentina

M 4.4 - 42km N of Putre, Chile

M 4.4 - 122km SE of Ndoi Island, Fiji

M 4.4 - 3km N of Anatahan, Northern Mariana Islands

M 4.3 - 5km ENE of Rion, Greece

M 4.3 - 35km S of Champerico, Guatemala

M 4.3 - 213km ENE of Ndoi Island, Fiji

M 4.3 - Fiji region

M 4.3 - 30km N of Piru, Indonesia

M 4.3 - 79km W of San Antonio de los Cobres, Argentina

M 4.2 - 10km WSW of Concepcion, Chile

M 4.2 - 20km W of La Cruz, Costa Rica

M 4.2 - 256km SW of Panenggoede, Indonesia

M 4.1 - 91km WNW of Toora-Khem, Russia

M 4.1 - 24km NNW of Lost Hills, California
PAGER - GREEN ShakeMap - III DYFI? - IV

M 4.1 - 4km SE of Tuxpan, Mexico

M 4.1 - 11km S of Gra Liyia, Greece

M 4.0 - 1km NNE of Schaan, Liechtenstein

M 4.0 - 151km SE of Nikolski, Alaska

M 4.0 - 42km SSE of Jarm, Afghanistan

M 5.4 - 26km ESE of Calingasta, Argentina

M 5.4 - offshore El Salvador
DYFI? - VI

M 5.4 - 11km SSE of Asahi, Japan

M 5.3 - 260km SE of Iwo Jima, Japan

M 5.3 - 210km WSW of Kuripan, Indonesia

M 5.3 - 177km NNW of Sola, Vanuatu

M 5.2 - 288km SE of Bristol Island, South Sandwich Islands

M 5.2 - 65km S of Gazanjyk, Turkmenistan

M 5.2 - 8km E of Huicungo, Peru

M 5.1 - 102km ESE of Kitaibaraki, Japan

M 5.1 - 17km WNW of Liberia, Costa Rica
DYFI? - V

M 5.1 - 237km ENE of Socorro Island, Mexico

M 5.1 - 23km ENE of Kuril'sk, Russia

M 5.1 - 84km NE of Poso, Indonesia

M 5.1 - West Chile Rise

M 5.1 - 30km NNE of Norsup, Vanuatu

M 5.0 - Balleny Islands region

M 5.0 - 35km SW of Playas, Ecuador

M 5.0 - 156km NE of Petropavlovsk-Kamchatskiy, Russia

M 5.0 - 7km ENE of Xinling, China

Isobathes de la plaque plongeante
Cliquer sur les traits pour connaitre la profondeur
Chaque modèle est réalisé à partir d'un catalogue composé de plusieurs jeux de données indépendants - les séismes historiques, des profils sismiques , des limites globales de la plaque,de la bathymétrie et de l'information de l'épaisseur des sédiments.
.
Réalisé par MJ Broussaud à partir des données de l'USGS
Références
Hayes, GP, DJ Wald, et RL Johnson (2012), Slab1.0: Un modèle en trois dimensions de la géométrie de la zone de subduction mondiale, J. Geophys. Res., 117, B01302, doi: 10.1029/2011JB008524.
Hayes, GP, et Wald, DJ 2009 Développer cadre de contraindre la géométrie du plan de rupture sismique de subduction l'interface a priori -. Une approche probabiliste, Geophys. Jour. Int., 176, 951-964
. Hayes, GP, Wald, DJ, et Keranen, K., 2009 Progresser techniques pour contraindre la géométrie du plan de rupture sismique sur la subduction interfaces a priori - d'ordre supérieur ajustements fonctionnels, Géochimie. Geophys. Geosyst, 10, Q09006, doi:. 10.1029/2009GC002633.
Slab1
Cette création est mise à disposition sous un contrat Creative Commons.

Profondeur km | 720

Profondeur km | 700

Profondeur km | 680

Plaques tectoniques
Adapté par MJ Broussaud à partir des données de l'USGS :
Cliquer ici pour accéder à This Dynamic Earth.
.L'histoire de la tectonique des plaques.

legende

Noms des plaques

Plaque africaine

Plaque Antarctique

Plaque Arabique

Plaque Australienne

Burma Plate

Plaque Caraîbes

Plaque Cocos

Plaque Eurasienne

Plaque Indienne

Paque Juan de Fuca

Plaque Nord Americaine

Plaque de Nazca

Plaque d'Okhotsk

Plaque Pacifique

Plaque des Philippine

Paque Rivera

Plaque Scotia

Plaque Sud Américaine

limites des plaques
Tectonic Plate Boundaries, detailed (US Geological Survey). from

Continental Rift Boundary

Oceanic Spreading Rift

Continental Transform Fault

Oceanic Transform Fault

Continental Convergent Boundary

Oceanic Convergent Boundary

Subduction Zone

Plate Convergence

Convergence Arrows

39 mm/yr
Convergence data are shown by arrows describing direction and speed, relative to the plate across the boundary.
For more information, see This Dynamic Planet.

58 mm/yr
Convergence data are shown by arrows describing direction and speed, relative to the plate across the boundary.
For more information, see This Dynamic Planet.

73 mm/yr
Convergence data are shown by arrows describing direction and speed, relative to the plate across the boundary.
For more information, see This Dynamic Planet.

Balises GPS
Il existe à la surface du globe des stations qui enregistrent leur position en latitude et en longitude grace au GPS (Global Positioning Sytem)
Sur les graphes, chaque point correspond à un enregistrement et une pente positive indique un déplacement vers le Nord ou vers l'Est et une pente négative un déplacement vers le Sud ou vers l'Ouest.
"Qu'est-ce que le GPS (anglais)"
Ensemble des stations GPS de la NASA : "NASA - GPS Time Series"

DAEJ
Cliquer ici pour accéder aux enregistrements. DAEJ

TAEJ
Cliquer ici pour accéder aux enregistrements. TAEJ

MTKA
Cliquer ici pour accéder aux enregistrements

USUD
Cliquer ici pour accéder aux enregistrements

KGNI
Cliquer ici pour accéder aux enregistrements

TSKB

PETP

KHAJ

KSMV
Cliquer ici pour accéder aux enregistrements. KSMV

Tomographie sismique
- Double cliquer sur le titre" tomographie sismique" , dans la colonne de gauche pour obtenir une position idéale pour l'observation
La tomographie sismique est une méthode qui peut être assimilée à un scanner pour la Terre :
On évalue les anomalies de vitesses des ondes sismiques, aux différentes profondeurs de la Terre puis on compare par rapport à un modèle de symétrie sphérique.
Les zones plus lentes sont interprétées comme des zones plus chaudes et moins denses.(rouges)
Les zones plus rapides sont interprétées commes des zones plus froides et plus denses.(bleues)
Cette anomalie de vitesse est interprétée comme la remontée d'un panache de manteau profond à l’origine du point chaud islandais.
Réalisé par MJ Broussaud avec le "KML generator" de Japan Agency for Marine-Earth Science and Technology
Yamagishi et al. (2008), Visualization of Geoscience Data on Google Earth: Development of Data Converter System for Seismic Tomography Models, Geochemical Data of Rocks, and Geomagnetic Field Models

Obayashi, M., H. Sugioka, J. Yoshimitsu, Y. Fukao (2006), High temperature anomalies oceanward of subducting slabs, Earth and Planetary Science Letters, 243, 149-158.

Dossier : Séisme au Japon 11 mars 2011

Epicentre du séisme du 11 mars 2011
Event ID: c0001xgp
Magnitude: 8.9
Date: Mar 11 2011
Lat: 38.32
Lon: 142.37

Tsunamis
Tsunami est un mot japonais qui veut dire vague.
Un tsunami est une série de vagues océaniques générées par les déplacements soudain du fond marin, glissements de terrain ou activité volcanique. Au fond de l'océan, la vague du tsunami peut être seulement de quelques cm de haut, elle peut doucement accoster ou augmenter en hauteur pour atteindre plusieurs mètres de haut .
Depuis 1850, les tsunamis ont été responsables de la perte de plus de 420 000 vies et ont causé des milliards de dollars de dommages aux habitats et structures côtières

2 vidéos du tsunami
Soyez patient, les vidéos sont longues à télécharger (23,8MB) !
vidéo 1 :Propagation propagation
durée 2min 45
vidéo 2 :destruction destruction
durée 2 min 54

Amplitude du tsunami
Model amplitudes calculated with the MOST forecast model. Filled colors show maximum computed tsunami amplitude in cm during 24 hours of wave propagation.
credit NOAA / PMEL / Center for Tsunami Research

Colorbar Legend

NOAA logo

2011-03-11 tsunami forecast maximum amplitude
The Honshu tsunami was generated by a Mw 8.9 earthquake (38.322°N, 142.369°E ), at 05:46 UTC, 130 km (80 miles) E of Sendai, Honshu, Japan (according to the USGS). In approximately 3 hours, the tsunami was first recorded at DART® buoy 32412. Forecast results shown below were created with the NOAA forecast method using MOST model with the tsunami source inferred from DART® data.
Model amplitudes calculated with the MOST forecast model. Filled colors show maximum computed tsunami amplitude in cm during 24 hours of wave propagation.

Accident de la centrale nucléaire de Fukushima Daiichi
Simulations de la dispersion atmosphérique du panache radioactif formé par les rejets de la centrale nucléaire de Fukushima Daiichi, entre le 12 mars et le 20 mars 2011 par L'IRSN (institut de radio-protection et sûreté nucléaire) Cliquer sur le lien
puis cliquer sur la petite flèche sous le cadre pour démarer l'animation