Pacific Coastal & Marine Science Center
Tsunamis & Earthquakes
Tsunami Generation from the 2004 M=9.1 Sumatra-Andaman Earthquake
Animation: Tsunami wavefield for the 2004 Sumatra-Andaman earthquake 1 hour after generation, view to the north
This animation shows a model of the tsunami generated by the December 26, 2004 earthquake. The first 3 hours of tsunami propagation are shown. The tsunami is generated between the island of Sumatra and the Sunda Trench. It then propagates outward into the Bay of Bengal toward Sri Lanka and India and to the east toward Sumatra and Thailand. Largest offshore tsunami amplitudes are in the Banda Aceh region of northern Sumatra.
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