Earthquake Risk Nationally 1
Earthquake Risk Nationally 1 : "Earthquakes pose the greatest natural danger in the United States for potential casualties and damage to buildings and infrastructure. According to a 2006 National Research Council (NRC) report,28 42 states have some degree of earthquake risk and 18 of those states have areas of high or very high seismicity. Over 75 million Americans live in 28 National Research Council, Improved Seismic Monitoring, Improved Decision Making - Assessing the Value of Reduced Uncertainty, 2006. urban areas with moderate to high earthquake risk. The NRC report notes that the estimated value of structures in all states prone to earthquake damage is approximately $8.6 trillion (2003 dollars)". (NEHRP, Strategic Plan for the National Earthquake Hazards Reduction Program Fiscal Years 2008-2012 (Draft), April 2008, p.1) The USGS National Seismic Hazard Maps emphasize that earthquakes are a national challenge with moderate to high hazard in 38 states. The data from these maps are incorporated into seismic provisions of model building codes - one of the central ways that NEHRP translates knowledge into practice. Image courtesy of USGS
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