2008 USGS National Seismic Hazard Maps
The U.S. Geological Survey's updated versions of the 2002 seismic hazard maps were created by incorporating
earthquake and ground shaking information gathered from science and engineering workshops, review by science
organizations and state surveys, and advice from two expert panels, according to a USGS statement. The resulting
maps — which include new findings on ground shaking, faults, seismicity, and geodesy — display earthquake ground
motions that can be applied to building codes, insurance rate structures, risk assessments, and other public policy.