By now most have heard of the 8.8 earthquake in Chile.
One of the interesting things about these kinds of coastal and underwater quakes is the generation of killer waves called tsunamis. This means that death and destruction are not necessarily finished with the quake and aftershocks (35 and counting!). Here is an interesting presentation concerning the Sumatra tsunami of 2004. The NOAA studies and models tsunamis, and has some interesting animations of how the waves can span the globe. The USGS gets into the action here.
Here is a pic showing the time it will take waves to cross the Pacific.
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