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In subduction, one tectonic plate moves under another. The most explosive volcanoes erupt in the subduction zone. This type of tectonic is happening in several places around the world, such as Chile; the Nazca plate is slipping under the South American plate. This is also happening in Washington, the Juan de Fuca plate is slipping under the Morth American plate, which is why Mount Saint Helens was formed. Subduction has also occured in Alaska, Mt. Fugi Japan, Krakatua Indonesia, and Mt. Etna Italy.

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16y ago

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