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Kuril-Kamchatka

island arc, Asia

Quick Summary

The Kuril-Kamchatka is an island arc, a curved chain of oceanic islands known for intense volcanic and seismic activity. It is located in the western Pacific Ocean, east of the Kamchatka Peninsula and the Kuril Islands, extending towards Japan. This arc is part of the Ring of Fire, a zone of geological instability.123

Island arcs form where tectonic plates converge. In this case, the Pacific Plate collides with plates to the west, causing one plate to subduct beneath the other, leading to volcanic eruptions and earthquakes. The Kuril Trench, a deep submarine depression, lies along the convex side of this arc. The Kuril Islands themselves are a chain of over 100 volcanoes, many of which are still active.1234

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