Mountain-sized chunk of rock hiding under Japan is channeling earthquakes - Livescience.com

The Kumano pluton plays an important role in the subduction of Japan's southern coast.

An underground mountain-sized chunk of rock may be affecting paths of large earthquakes in southern Japan. The dense igneous rock, known as the Kumano pluton, is lurking about 3.1 miles (5 kilometer… [+7473 chars]

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