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March 12, 2011
Animation of Japan quake traversing the U.S.
The data-consolidating institutional consortium IRIS–the Incorporated Research Institutions for Seismology–has a spectacular resource to visualize actual seismic waves propagating around the Earth, that everyone should check out. Here is an animation they put together (they do this for every significant quake) displaying ground motion at recording stations set up around the U.S. You can see the dramatic passage of the seismic waves from the 8.9 quake, and you get glimpses …
