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Why did the tsunami happen?

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Rylee Mante

Lvl 10
5y ago
Updated: 7/27/2021

The 2004 Indian ocean Tsunami was triggered by a magnitude 9.2 earthquake off the coast of Sumatra. The earthquake occurred at a subduction zone where the Indian Plate slides under the Eurasian Plate. These plates had snagged and, over the course of centuries, built up stress. On December 26, 2004 they slipped, causing the earthquake. As they slipped, portions of the sea floor moved up while others moved down. This displaced large amounts of seawater, triggering the tsunami.

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