Fast Facts about the Japan Earthquake and Tsunami

Monday, March 14, 2011 - 19:50 in Earth & Climate

Why was Japan's March 11 earthquake so big? One answer is the large size of the fault rupture as well as the speed at which the Pacific Plate is continuously thrusting beneath Japan, U.S. Geological Survey (U.S.G.S.) scientist Tom Brocher told KQED News. People felt shaking in cities all over Honshu, Japan's main island. [More]

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