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July 21, 2014
WASHINGTON — A new federal earthquake map dials up the shaking hazard just a bit for about one-third of the United States and lowers it for one-tenth.
The U.S. Geological Survey has updated its national seismic hazard maps for the first time since 2008, taking into account research from the devastating 2011 earthquake and tsunami off the Japanese coast and the surprise 2011 Virginia temblor.
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