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Kuril–Kamchatka Trench
The Kuril–Kamchatka Trench or Kuril Trench (russian: Курило-Камчатский жёлоб, ''Kurilo-Kamchatskii Zhyolob'') is an oceanic trench in the northwest Pacific Ocean. It lies off the southeast coast of Kamchatka and parallels the Kuril Island chain to meet the Japan Trench east of Hokkaido. It extends from a triple junction with the Ulakhan Fault and the Aleutian Trench near the Commander Islands, Russia, in the northeast, to the intersection with the Japan Trench in the southwest. The trench formed as a result of the subduction zone, which formed in the late Cretaceous, that created the Kuril island arc as well as the Kamchatka volcanic arc. The Pacific Plate is being subducted beneath the Okhotsk Plate along the trench, resulting in intense volcanism. Tectonics At the Kuril-Kamchatka Trench, the Pacific Plate is subducting beneath the Okhotsk Plate, a microplate formerly considered to be part of the North American Plate. The convergence rate ranges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuril Trench
The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the Russian Far East. It stretches approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia separating the Sea of Okhotsk from the north Pacific Ocean. There are 56 islands and many minor rocks. The Kuril Islands consist of the Greater Kuril Chain and the Lesser Kuril Chain. They cover an area of around , with a population of roughly 20,000. The islands have been under Russian administration since their 1945 invasion as the Soviet Union towards the end of World War II. Japan claims the four southernmost islands, including two of the three largest (Iturup and Kunashir), as part of its territory, as well as Shikotan and the Habomai islets, which has led to the ongoing Kuril Islands dispute. The disputed islands are kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Okhotsk
The Sea of Okhotsk ( rus, Охо́тское мо́ре, Ohótskoye móre ; ja, オホーツク海, Ohōtsuku-kai) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands on the southeast, Japan's island of Hokkaido on the south, the island of Sakhalin along the west, and a stretch of eastern Siberian coast along the west and north. The northeast corner is the Shelikhov Gulf. The sea is named after the Okhota river, which in turn named after the Even word () meaning "river". Geography The Sea of Okhotsk covers an area of , with a mean depth of and a maximum depth of . It is connected to the Sea of Japan on either side of Sakhalin: on the west through the Sakhalin Gulf and the Gulf of Tartary; on the south through the La Pérouse Strait. In winter, navigation on the Sea of Okhotsk is impeded by ice floes. Ice floes form due to the large amount of freshwater from the Amur River, lowering the sal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2013 Okhotsk Sea Earthquake
The 2013 Okhotsk Sea earthquake occurred with a moment magnitude of 8.3 at 15:44:49 local time (05:44:49 UTC) on 24 May. It had an epicenter in the Sea of Okhotsk and affected primarily (but not only) Asian Russia, especially the Kamchatka Peninsula where the shaking lasted for five minutes. Earthquake The earthquake had a moment magnitude of 8.3 and was the largest to strike Russia since 2006. Due to its great depth of 609 km, it was not particularly intense at the surface, but was felt over a very large area. Such a deep-focus earthquake could be felt not only in areas surrounding the Okhotsk Sea but also in places as far as Tokyo ( JMA 1, about 2,400 km away from the epicenter), Nanjing (more than 4,000 km away), Atyrau ( MMI V, about 7,200 km away), Moscow (about 7,400 km away), and Belgrade (about 8,100 km away). Maximum recorded JMA intensity was Shindo 3 (equivalent to IV (''Light'') on the MMI Scale). A related aftershock with a magnitude 6.7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2006 Kuril Islands Earthquake
The 2006 Kuril Islands earthquake occurred on November 15 at with a magnitude of 8.3 and a maximum Mercalli intensity of VII (''Very Strong'') and a maximum Shindo intensity of JMA 2. This megathrust earthquake was the largest event in the central Kuril Islands since 1915 and generated a small tsunami that affected the northern Japanese coast. The tsunami crossed the Pacific Ocean and damaged the harbor at Crescent City, California. Post-tsunami surveys indicate that the local tsunami in the central Kuril Islands reached runups of or higher. This earthquake is also considered a doublet of the 2007 Kuril Islands earthquake that hit the same area on January 13, 2007. Tsunami At about 11:45 UTC, tsunami warnings were issued in Japan for the north coasts of Hokkaidō and Honshū, and a number of towns in this area were very quickly evacuated. Tsunami warnings, advisories and watches were also issued for the coastal areas of Alaska, Hawaii, parts of British Columbia, Washington, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2003 Hokkaidō Earthquake
The 2003 Hokkaidō earthquake, scientifically named the , occurred off the coast of Hokkaidō, Japan on 26 September at 04:50 local time (19:50 UTC 25 September). At a focal depth of 27 km (17 mi), this great undersea earthquake measured 8.3 on the moment magnitude scale, making it the most powerful earthquake of 2003, as well as one of the most intense earthquakes to hit Japan since modern record-keeping began in 1900. The Hokkaido earthquake caused extensive damage, destroying roads all around Hokkaidō, and triggered power outages and extensive landslides. Over 800 people were injured. The earthquake also caused a tsunami reaching 4 meters in height. The earthquake's presence was felt throughout Japan, stretching all the way to Honshu and Tokyo. Tectonic setting The location and moment tensor solution of this earthquake are consistent with it being a result of thrust faulting between the North American Plate and the subducting Pacific Plate. In addition to experien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1994 Kuril Islands Earthquake
The 1994 Kuril Islands earthquake – also known as the Hokkaido Toho-oki earthquake – occurred on . The magnitude of this earthquake was put at 8.3, or . The epicenter was located at about 70 km east of Shikotan Island. The shaking and tsunami caused road and building damage. At least 10 people were reported dead. Earthquake This earthquake was an intra-slab earthquake within the Pacific Plate which is subducting beneath the Okhotsk Plate. Damage Oil storage tanks in Malokurilsk and Krabozavodsk were damaged. An oil leak occurred and caused heavy contamination of the port area. Intensity The intensity was MSK VI~IX in Shikotan Island. The earthquake could be felt in Tokyo with shindo 3, and in Hokkaido, the highest intensity reached shindo 6. Aftershocks A large aftershock of magnitude 7.1 or 7.7 occurred on October 9, 1994, at 07:55 UTC. It was located at 43.97° N, 148.22° E with a depth of 33 km. It generated a tsunami, and a peak-to-trough tsunami wave hei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1963 Kuril Islands Earthquake
Events January * January 1 – Bogle–Chandler case: Commonwealth Scientific and Industrial Research Organisation scientist Dr. Gilbert Bogle and Mrs. Margaret Chandler are found dead (presumed poisoned), in bushland near the Lane Cove River, Sydney, Australia. * January 2 – Vietnam War – Battle of Ap Bac: The Viet Cong win their first major victory. * January 9 – A total penumbral lunar eclipse is visible in the Americas, Europe, Africa, and Asia, and is the 56th lunar eclipse of Lunar Saros 114. Gamma has a value of −1.01282. It occurs on the night between Wednesday, January 9 and Thursday, January 10, 1963. * January 13 – 1963 Togolese coup d'état: A military coup in Togo results in the installation of coup leader Emmanuel Bodjollé as president. * January 17 – A last quarter moon occurs between the penumbral lunar eclipse and the annular solar eclipse, only 12 hours, 29 minutes after apogee. * January 19 – Soviet spy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1952 Severo-Kurilsk Earthquake
The 1952 Severo-Kurilsk earthquake struck off the coast of the Kamchatka Peninsula. The 9.0 Mw earthquake triggered a major tsunami that hit Severo-Kurilsk, Kuril Islands, Sakhalin Oblast, Russian SFSR, USSR, on 4 November 1952 at 16:58 ( UTC). This led to the destruction of many settlements in Sakhalin Oblast and Kamchatka Oblast, while the main impact struck the town of Severo-Kurilsk. It was the fifth most powerful earthquake since 1900, and to date, the most powerful earthquake in Russian history. Tectonic setting The earthquake occurred off the Kamchatka Peninsula's east coast, which runs parallel to the Kuril-Kamchatka Trench, the area where the Pacific and Okhotsk Sea plates converge. Being older and therefore denser, the Pacific subducts beneath the Kamchatka Peninsula, which sits on the Okhotsk Sea Plate. These two plates meet along a convergent boundary, marked by the trench. The subduction zone is seismogenic and produces Kamchatka earthquakes, which occasionally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1933 Sanriku Earthquake
The occurred on the Sanriku coast of the Tōhoku region of Honshū, Japan on March 2 with a moment magnitude of 8.4. The associated tsunami caused widespread devastation. Earthquake The epicenter was located offshore, east of the city of Kamaishi, Iwate. The main shock occurred at 02:31 AM local time on March 3, 1933 (17:31 UTC March 2, 1933) and measured 8.4 on the moment magnitude scale. It was in approximately the same location as the 1896 Sanriku earthquake and it occurred far enough away from the town that shaking did little damage. Approximately three hours after the main shock there was a magnitude 6.8 aftershock, followed by 76 more aftershocks (with a magnitude of 5.0 or greater) over a period of six months. This was an intraplate event that occurred within the Pacific Plate, and the focal mechanism showed normal faulting. Damage Although little damage was produced from the shock, the tsunami, which was recorded to reach the height of at Ōfunato, Iwate, caused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
April 1923 Kamchatka Earthquake And Tsunami
On April 13, 1923 at 15:31 UTC, an earthquake occurred off the northern coast of the Kamchatka Peninsula in the USSR, present-day Russia. The earthquake had a surface-wave magnitude () of 6.8–7.3 and an estimated moment magnitude () of ~8.2. This event came just two months after a slightly larger earthquake with an epicenter struck south of the April event. Both earthquakes were tsunamigenic although the latter generated wave heights far exceeding that of the one in February. After two foreshocks of "moderate force", the main event caused considerable damage. Most of the 36 casualties were the result of the tsunami inundation rather than the earthquake. Tectonic setting The earthquake occurred off the Kamchatka Peninsula's east coast, which runs parallel to the Kuril-Kamchatka Trench, the area where the Pacific and Okhotsk Sea plates converge. Being older and therefore denser, the Pacific subducts beneath the Kamchatka Peninsula, which sits on the Okhotsk Sea Plate. These two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
February 1923 Kamchatka Earthquake
The February 1923 Kamchatka earthquake occurred on 3 February 1923. The epicenter was on the southeastern coast of the Kamchatka Peninsula. The earthquake triggered a tsunami with wave heights up to eight metres, causing damage as far away as Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only .... The maximum perceived Mercalli intensity scale, Mercalli intensity was XI (''Extreme''). The tsunami caused two deaths in Kamchatka and one in Hawaii. The earthquake happened 26 years before the U.S. had the capability to issue tsunami warnings, but Thomas Jaggar, the director of the Hawaiian Volcano Observatory, tried to warn the Hilo, Hawaii, Hilo harbormaster about the possibility of a tsunami. His warning was not taken seriously and one fisherman was killed when the tsunami hit. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
