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Topic: Kuril Trench


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  oceanic_trench   (Site not responding. Last check: 2007-10-15)
Trenches are generally parallel to a volcanic island arc, and trenches about 200 km from a volcanic arc.
Trenches along with volcanic arcs and zones of earthquakes that dip under the volcanic arc as deeply as 700 km are diagnostic of convergent plate boundaries and their deeper manifestations, subduction zones.
Trenches distant from an influx of continental sediments lack an accretionary prism, and the inner slope of such trenches is commonly composed of igneous or metamorphic rocks.
www.microsoft360.com /wiki/?title=Oceanic_trench   (3669 words)

  
 Oceanic trench Summary
Trenches form where oceanic lithosphere is subducted at a convergent plate margin, presently at a global rate of about a tenth of a square meter per second.
Trenches are centerpieces of the distinctive physiography of a convergent plate margin.
The slope of the inner trench slope of an accretionary convergent margin reflects continuous adjustments to the thickness and width of the accretionary prism.
www.bookrags.com /Oceanic_trench   (4120 words)

  
 The Philippine Trench   (Site not responding. Last check: 2007-10-15)
Until 1970 the Philippine Trench was regarded as the deepest point of the earth.
Deeper is the Mariana Trench (11,034 meters), the Tonga Trench (10,882 meters) and the Kuril Trench (10,542 meters).
In the Philippine Trench in a depth of until up to three miles one of the world-largest deposits of deuterium (heavier hydrogen) was also found.
home.arcor.de /be/bethge/philippinetrench.htm   (616 words)

  
 Kuril Islands - Wikipedia, the free encyclopedia
The Kuril Islands IPA: [kʰʊˈɹɪl aɪ̯ləndz] (Russian: Кури́льские острова́ (/kuˈrʲilskiɪe əstrʌˈva/), Kuril'skie ostrova) or Kurile Islands in Russia's Sakhalin Oblast region, stretch approximately 1,300 km (700 miles) northeast from Hokkaidō, Japan, to Kamchatka, Russia, separating the Sea of Okhotsk from the North Pacific Ocean.
The name Kuril originates from the autonym of the aboriginal Ainu: "kur", meaning man. It may also be related to names for other islands that have traditionally been inhabited by the Ainu people, such as Kuyi or Kuye for Sakhalin and Kai for Hokkaidō.
The Kuril Islands first came under Japanese administration in the Edo period of Japan, in the form of claims by the Matsumae clan.
en.wikipedia.org /wiki/Kuril_Islands   (1548 words)

  
 Kuril Islands information - Search.com   (Site not responding. Last check: 2007-10-15)
The Kuril Islands /kʰʊˈɹɪl aɪ̯ləndz/ (Russian: Кури́льские острова́ /kuˈrʲilskiɪ əstrʌˈva/) or Kurile Islands in Russia's Sakhalin Oblast region, stretch approximately 1,300 km (700 miles) northeast from Hokkaidō, Japan, to Kamchatka, Russia, separating the Sea of Okhotsk from the North Pacific Ocean.
The islands were inhabited primarily by the Ainu and were being explored and settled by the Russians and Japanese in the 18th and 19th centuries.
The Kuril Islands form a volcanic island arc as a result of plate tectonics and are home to over 100 volcanoes, about 35 of which are active.
c10-ss-1-lb.cnet.com /reference/Kuril_Islands   (479 words)

  
 Yuzhnokurilsk information
Kuril Islands is a chain of about 50 small islands belonging to Russia, stretching from the northeast of Hokkaido, Japan, to the south of Kamchatka, Russia, area 14,765 sq km/5,700 sq mi; population (1990 est) 25,000.
Offshore is the Kuril Trench, one of the deepest ocean areas in the world, which reaches a depth of 10.5 km/6.5 mi.
The Kurils were discovered in 1634 by a Russian navigator and were settled by Russians.
www.russianfareast.net /FarEast/city/Yuzhkurilsk/yuzhkur.htm   (248 words)

  
 IKIP: Island Info
The Greater Kuril Ridge includes the Shiretoko Peninsula of eastern Hokkaido, all of the remaining Kuril Islands, from Kunashir north to Shumshu, and the southern tip of the Kamchatkan Peninsula.
Volcanic activity and uplift in the region of the Lesser Kuril Ridge intensified during the Paleocene and Eocene as the Kula-Pacific Ridge was subducted into the Kuril-Kamchatka Trench, and it was probably during this period that the Lesser Kuril Ridge emerged from the sea (Kimura and Tamaki, 1985).
In summary, the islands of the Lesser Kuril Ridge were formed during the Late Cretaceous and Paleocene, while the islands of the Greater Kuril Ridge began to form during the Late Oligocene and Miocene.
artedi.fish.washington.edu /okhotskia/ikip/Info/geohist.html   (1389 words)

  
 Major Earthquakes in Japan in the 20th Century - Dr. George Pararas-Carayannis
The South Kuril Islands are part of the Kuril arc in the Okhotsk plate which has been colliding westward against the Northeast Japan arc, along the Hidaka Collision Zone (HCZ), where new continental crust is created by active arc-arc collision.
The seismicity of Northern Japan is the result of a double seismic zone (DSZ), and compressional deep trench and outer rise events and is caused by the magmatic effects of plumes or superplumes which, originally, may have hydrated the subducting oceanic lithosphere.
A pair of large magnitude earthquakes occurred north of Hokkaido, in the southern Kuril Islands on the 13 and 19 of October 1963.
www.drgeorgepc.com /EarthquakesJapan.html   (2809 words)

  
 Famous Sea Trenches quiz -- free game
It reaches a maximum depth of 24,440 feet and is the deepest trench of the Indian Ocean.
This trench is a narrow submarine depression lying near the Equator in the mid-Atlantic Ocean.
This trench, also called the Bartlett Deep, is a relatively narrow submarine trench on the floor of the western Caribbean sea between Jamaica and the island group after which it is named.
www.funtrivia.com /playquiz/quiz19605916733b0.html   (350 words)

  
 THE EARTHQUAKE AND TSUNAMI OF 15 NOVEMBER 2006 IN THE KURIL ISLANDS - by Dr. George Pararas-Carayannis
The seismicity of Northern Japan is the result of a double seismic zone (DSZ), and compressional deep trench and outer rise events and by the magmatic effects of plumes or superplumes which, originally, may have hydrated the subducting oceanic lithosphere.
The crustal area in the Southern Kuril Islands and Northern Hokkaido, along the northern part of the Japan and Kuril Trenches, appears to be highly fractured.
The majority of earthquakes in the central and southern Kuril islands and the Hokkaido region - even those of large magnitude - usually involve single segment ruptures along the Kuril trench - segments that are truncated by oblique asperities.
www.drgeorgepc.com /Tsunami2006Kurils.html   (4016 words)

  
 The Deep Sea
Volcanic arcs and oceanic trenches partly encircling the Pacific Basin form the so-called Ring of Fire, a zone of frequent earthquakes and volcanic eruptions.
The volcanic island arcs, although not labelled, are parallel to, and always landward of, the trenches.
The deepest known point on Earth is at the bottom of the Mariana Trench, a depression in the floor of the western Pacific Ocean, just east of the Mariana Islands.
www.ocean.udel.edu /deepsea/level-2/geology/deepsea.html   (453 words)

  
 Highbeam Encyclopedia - Search Results for Kuril
It is connected with the Sea of Japan by the Tatar and La Pérouse straits and with the Pacific Ocean by passages through the Kuril Islands.
Sakhalin, formerly Saghalien, island (c.29,500 sq mi/76,400 sq km), off the coast of Asian Russia, between the Sea of Okhotsk and the Sea of Japan; separated from the Russian mainland on the west by the Tatar Strait and from Hokkaido, the northernmost island of Japan, by the Soya Strait.
A historical reevaluation of America's role in the Kuril Islands dispute.
www.encyclopedia.com /SearchResults.aspx?Q=Kuril   (520 words)

  
 UN Seahorse: Oceans around Japan
Trenches, found in the lowest parts of the earth's surface, are formed by the subduction of one plate below the edge of another, causing major earthquakes periodically.
The meeting of plates and trenches also produces an interesting set of ocean floor phenomena, such as thermal vents (which support a peculiar set of lifeforms, some of which can survive in temperatures as high as 90 degC!), hydrothermal deposits, ocean currents etc. Trenches have also been a focus of interest for earthquake prediction.
A marginal sea on the northern rim of the Pacific Ocean centered near 55 N and 150 E. It is bounded by the Siberian coast to the west and north, the Kamchatka Peninsula to the east, and the Kurile Islands to the south and southeast.
www.gdrc.org /oceans/un-seahorse/ocean.html   (1096 words)

  
 Marine Zones - MarineBio.org
Trenches in the ocean are narrow and long depressions in the ocean floor.
Trenches are caused by the movement of tectonic plates, sometimes diving (becoming subducted) under another plate deep into the ocean floor.
The Mariana Trench is the deepest part of the ocean and was discovered during a voyage of the Challenger Deep.
www.marinebio.com /Oceans/Marinezones.asp   (1775 words)

  
 AGU'03_abst   (Site not responding. Last check: 2007-10-15)
The 2003 Tokachi-oki (Mw 8.0) earthquake was an interplate event occurred at the southwestern end of the Kuril trench.
The previous large earthquakes along the SW Kuril trench occurred, from SW to NE, in 1952, 1973 (Mw 7.8), 1969 (Mw 8.2) and 1963 (Mw 8.5).
Paleoseismological data (tsunami deposits and coastal uplifts) indicate that unusually large earthquakes have recurred in the SW Kuril trench with an interval of approximately 500 years.
unit.aist.go.jp /actfault/seika/agu2003/satake.html   (350 words)

  
 Kamchatka Peninsula - New World Encyclopedia Preview
The Kuril island chain runs from the southern tip of the peninsula to a short distance from Japan's northern Hokkaido Island.
The westernmost islands in the chain are Russian territory, not American, and lie about 200 km from the middle coast of the Kamchatka Peninsula.
Between the peninsula and the Bering Sea runs the Kuril-Kamchatka Trench, with a depth of 10,500 m, similar to but not as deep as the trench that parallels the southern coast of the Aleutian chain.
www.newworldencyclopedia.org /preview/Kamchatka_Peninsula   (1091 words)

  
 RUSNET.NL :: Encyclopedia :: K :: Kuril Islands
Earthquakes and tidal waves are common; the tidal wave of 1737 attained a height of 210 feet (64 m), one of the highest on record.
Parallel to the chain, in the Pacific floor, is the Kuril Trench, which reaches a depth of more than 6.5 miles (10.5 km).
The Kurils were originally settled by the Russians, following their exploration in the 17th and 18th centuries.
www.rusnet.nl /encyclo/k/print/kuril_islands.shtml   (332 words)

  
 Kuril Islands   (Site not responding. Last check: 2007-10-15)
The Kuril Islands The Kuril Islands (Russian: &1050;&1091;&1088;&1080;&769;&1083;&1100;&1089;&1082;&1080;&1077; &1086;&1089;&1090;&1088;&1086;&1074;&1072;&769;, Kuril'skie ostrova), also known as Kurile Islands, stretch northeast from Hokkaid&333;, Japan, to Kamchatka, separating the Sea of Okhotsk from the North Pacific Ocean.
The name originates from the autonym of the aboriginal Ainu: "kur", meaning man. The Kuril Islands were inhabited by the Ainu from time immemorial until they were expelled from the northernmost by the Russians in the 18th century.
In the 18th and early 19th centuries, the Kurils were explored by Danila Antsiferov, I.Kozyrevsky, Ivan Yevreinov, Fyodor Luzhin, Martin Shpanberg, Adam Johann von Krusenstern, and Vasily Golovnin.
kuril-islands.iqnaut.net   (345 words)

  
 The Mariana Trench - Oceanography
At least 22 trenches have been identified although not all are classified as major.
The Mariana Trench is often used as a North-South passage by submarines as it is part of a long system of trenches that circle the Pacific Ocean, connected with the Japan and Kuril Trenches.
The coordinates for the Mariana Trench are 11"21' North latitude and 142" 12' East longitude.
www.marianatrench.com /mariana_trench-oceanography.htm   (346 words)

  
 Mariana Trench Map
Trench at 10924 m in the Pacific Ocean...
Trench Exciting south coast audiences from Brighton to Plymouth with their unique brand of funk and acid jazz.
Trench is the deepest point in Earth's oceans...
www.netactics.co.uk /mariana_trench_map.html   (243 words)

  
 Oceanic trench   (Site not responding. Last check: 2007-10-15)
Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches.
A trench marks the position at which the flexed, subducting slab begins to go under, on the convex side and between 50 and 250 km from a volcanic arc.
The deepest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench at a depth of 10,991m (35,798 ft) below sea level.
oceanic-trench.kiwiki.homeip.net   (328 words)

  
 PDC Updates - M8.3 Earthquake in the Kuril Islands Generated Small But Non-Destructive Waves
The epicenter of the earthquake was in the Kuril Trench—a place where the Pacific Plate is forced beneath the North American plate.
The Kuril Trench is part of the "Pacific Ring of Fire," a line of volcanoes around the Pacific Rim which is, historically, a region of high seismic activity.
U.S. Geological Survey maintains a historic record of seismic activity around the Kuril Trench and provides links to related phenomena in the region.
www.pdc.org /PDCNewsWebArticles/2006kurilearthquake/kurileq.html   (353 words)

  
 Plate Tectonics Homework Key
Oceanic trenches, island arcs, volcanic arcs (continental) and active mountain belts indicate Convergent Boundaries.
Himalayan Mountains are an example of a Continent-Continent convergent plate boundary where two slabs of continental crust have collided and compressing the crust and the acretionary wedge material and lifting it to form the Himalayan Mountains.
The Kuril trench since old crust is being consumed at a convergent boundary farthest from the new crust being generated at the East Pacific Rise.
www.eeescience.utoledo.edu /Faculty/Hayden/Courses/EngGeol/PlateTectHWKey.htm   (1152 words)

  
 The deepest depths
Sounding lines were run at right angles to the east-west axis of the trench, thus obtaining profiles across this giant crack on the surface of the globe.
Such trenches do not have spectacular slopes as one might find in a canyon on land, but descended slowly and steadily to meet in a small flat expanse at the bottom from which the echo returns more clearly than from any other part.
A sample from the trench was also obtained with the Baillie rod after three attempts.
www.soc.soton.ac.uk /OTHERS/CSMS/OCHAL/deep.htm   (2154 words)

  
 USGS Earthquake Hazards Program » Magnitude 8.3 - KURIL ISLANDS
The Kuril Islands earthquake of November 15, 2006, occurred as thrust-faulting on the boundary between the Pacific plate and the Okhotsk plate.
The Pacific plate subducts beneath the Okhotsk plate at the Kuril Trench and becomes progressively deeper to the northwest, remaining seismically active to a depth of 680 km.
The November 15 earthquake is the largest earthquake to have occurred in the central Kuril Islands since the early 20th century.
earthquake.usgs.gov /eqcenter/recenteqsww/Quakes/usvcam.php   (549 words)

  
 Earthquake and Tsunami of October 4, 1994 IN THE KURIL ISLANDS - Dr. George Pararas-Carayannis
Specifically, the October 4, 1994 earthquake (as the October 12, 1963 earthquake) ocurred at the Pacific side boundary of the Kuril arc (the South Kuril Islands) of the Okhotsk plate.
The crustal area in the Southern Kuril Islands and Northern Hokkaido, along the northern part of the Japanese Trench, appears to be highly fractured.
As described previously, the South Kuril Islands are part of the Kuril arc in the Okhotsk plate which has been aslo colliding westward against the Northeast Japan arc, along the Hidaka Collision Zone (HCZ), where new continental crust is created by active arc-arc collision.
www.drgeorgepc.com /Tsunami1994RussiaKurils.html   (4617 words)

  
 Zazizam.com : Education - Kamchatka Earthquakes   (Site not responding. Last check: 2007-10-15)
Kamchatka earthquakes were a pair of megathrust earthquakes occurring off the coast of the Kamchatka Peninsula, in Russia on October 16, 1737, and on November 4, 1952, in the magnitude of 9.3 and 9.0 respectively, with resulting tsunamis following.
The depth of the trench at the point of the earthquakes is 7000 - 7500 meters.
The epicenter of the 1737 earthquake was located at 52.5°N and 159.5°E. This earthquake occurred at a depth of 40 km.
www.zazizam.com /content/education/k/Kamchatka_earthquakes.php   (166 words)

  
 [No title]   (Site not responding. Last check: 2007-10-15)
The Kuril Trench is a trench in the western pacific ocean, situated on the east side of the Hokkaido island, Japan.
It has a maximum depth of 34,587 feet (10,542m) and covers an are of 102,000square miles (264,000 square km).
The Kuril Trench marks the beginning of a chain of oceanic trenches extending from the southwestern edge of the Bering sea to the southern tip of the Philippine trench.
www.bisdragons.com /students2001/oceans/trenches/kuriltrench.html   (69 words)

  
 11-Related Evidence
The Emperor Seamounts stretch southward from a point near the Kuril-Aleutian Trench conjunction, but at approximately 33°N latitude, 171°E longitude, the Emperor Chain abruptly changes direction to the southeast, becoming the Hawaiian Island Chain.
Sediments cored near several seamounts of the Emperor Chain and the Hawaiian Islands disclosed a pattern of decreasingly younger ages (~70, 65, 55, 56 Ma) from the Kuril-Aleutian Trench conjunction to Midway Island (~20 Ma) to Hawaii Island (~2 Ma).
Wilson, assuming subduction, postulated that the northern Pacific seafloor is moving northwestward, carrying the Emperor Seamounts and Hawaiian Islands with it to be subducted into the Asian trenches.
www.expanding-earth.org /page_11.htm   (1352 words)

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