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Improved earthquake monitoring in the Central and Eastern United States in support of seismic assessments for critical facilities

Leith, William S.; Benz, Harley M.; Herrmann, Robert B.

Open-File Report 2011-1101, Reston, Virginia : U.S. Geological Survey, 2011, PDF

This report was developed in response to a request by the U.S. Nuclear Regulatory Commission (USNRC) for evaluation of seismic monitoring capabilities in the central and eastern United States (abbreviated in this report as CEUS) with an emphasis on meeting current and future needs of the USNRC. This Phase II report focuses on specific improvements to earthquake monitoring in the CEUS likely to further the USNRC's goals for improved understanding of seismic hazards within this region. To accomplish this evaluation task, the report provides an update on the current state of earthquake monitoring in the CEUS, a description of seismic upgrades in the CEUS supported by the U.S. Geological Survey through the American Recovery and Reinvestment Act (ARRA) of 2009, and proposals for deployment of new instrumentation. The report also proposes the adoption of earthquake notification and emergency response tools using Advanced National Seismic System (ANSS) earthquake information and products that show the distribution of ground shaking from significant earthquakes.

Available online: (2 MB)