Are there any ocean trenches and ridges in japan?

if you know there are ocean trenches and ridges in japan, can you show me a picture of where around japan?Are there any ocean trenches and ridges in japan?
Yes it appears Japan is sitting right on top of an ocean trench.Are there any ocean trenches and ridges in japan?
Aleutian Islands


subduction of Pacific Plate under North America (Bering Sea component)


angle of subduction is increasing oblique toward the west, resulting in slower subduction, fewer volcanics


chain terminated by Kamchatka Peninsula


Aleutian Trench


water depth of trench increases westward as a result of less sediment input from smaller volcanic islands


almost filled, and extensively over-ridden by Alaskan accretionary prism in the east


Banda Arc


Australian shelf subducting northwestward under Timor


New Guinea-Moluccas subducting south/southwestward under Ceram


Banda Sea on over-riding plate


most of the islands in this arc are forearc ridge islands


see Kearey and Vine p. 202 for details


Bonin Islands


minor volcanic chain north of the Marianas


most immature of island arcs (youngest too?) - boninites (high Fe ol-opx andesites)


Dzhugdzhur Range


northwestern margin of Sea of Okhotsk, extension of Verkhoyansk Range


collision of Okhotsk shelf with East Siberian (Aldan) Shield


locus of earthquakes that mark an incipient, poorly defined collisional boundary between North American plate and Eurasian plate


Emperor Seamount Chain


older part of Hawaii-Emperor Seamount Chain (%26gt; 42 Ma)


extends from Midway Island to Kamchatka


Hokkaido


northernmost Japanese island, extends northeast into Kuril Islands


composed of multiple island arcs through much of the Phanerozoic


Honshu


main island of Japan


northern half (north of Tokyo) is a typical mature island arc, with Pacific plate subducting below North American plate


southern half (south of Tokyo) is a typical mature island arc, with Philippine Sea plate subducting below Eurasian plate


Izu Islands


northernmost extension of the Mariana-Bonin-Izu arcs, extending south from Izu Peninsula, Japan


immature island arc


Japan Sea Basin


complex basin between Japan and Korea/Russia


opened mainly in the Tertiary


central ridge (Yamato Ridge) may be half of a rifted arc


Japan Trench


extension of the Nankai Trench south


subduction of Pacific Plate below Izu-Bonin Islands


Kamchatka


volcanic peninsula in eastern Siberia


northward extension of the Kuril Islands


Kuril Backarc Basin


deep basin in southern Sea of Okhotsk northwest of Kuril arc


Kuril Islands


island arc between Hokkaido and Kamchatka


Kuril Trench


subduction trench of Pacific plate under North American plate


extends from offshore central Kamchatka to Hokkaido


Mariana Islands


classic young island arc setting


very high-angle subduction because this is the area of the oldest, coldest (subducting) ocean floor


deepest trench in the world (%26gt;10 km) because of cold ocean floor + virtually no sediment input


Mindinao Trench


long trench extending from central Philippines south to Indonesian islands


subduction of Philippine Sea plate below Philippine arc


Nankai Trough


name given to northern part of Japan Trench, north of Tokyo


New Guinea


large island, geologically the leading edge of the Australian plate


in collision with several small arcs (New Britain, New Ireland, Banda) and Ontong-Java Plateau


Ontong-Java Plateau


large submarine ancient hot-spot volcanic plateau


thickened Layer 2 oceanic crust, too buoyant to subduct, ';clogs up'; the west Pacific subduction zones north New Guinea and Solomon Islands


Parece Vela Basin


inactive back arc marginal basin with high heat flow in the eastern Philippine Sea


subduction now stepped east to the Mariana arc


Philippine Islands


large and complex mature volcanic arc


west vergent subduction of the Philippine Sea plate on the east; east vergent subduction of the South China, Sulu and Celebes seas on the west


Ryukyu Islands


island arc extending from Kyushu to Taiwan


Philippine Sea plate subducting below Eurasia


Sakhalin


island north of Hokkaido


probably the product of transpressional tectonics along the North America-Eurasia boundary


Solomon Islands


volcanic arc east of New Guinea


southwestward vergent subduction recently stopped by arrival of Ontong-Java Plateau


subduction now flipped to northeast vergent, Coral Sea (Indo-Australian plate) subduction below Pacific plate


switch in subduction orientation effectively transferred the Solomon Islands from the Indo-Australian plate to the Pacific plate


Taiwan


island uplifted at the intersection of the Ryukyu arc and Philippine arc


Philippine Sea plate subducted below Eurasia


West Philippine Sea Basin


area of Mesozoic ocean floor east of Philippine Archipelago


western half of Philippine