Thursday, October 3, 2013
Seattle’s Lafayette School after the 1949 quake. Deep quakes, like those in 1949, 1965 and 2001, originate 20 miles or more underground, which blunts their destructiveness. Quakes on shallow faults — like the ones near Seattle, Everett and Tacoma — can devastate urban areas. The Seattle Fault last snapped about 1,100 years ago, uplifting shorelines on Bainbridge Island and in West Seattle and spawning a tsunami in Puget Sound.
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