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2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.
2015. Monterey County (Calif.). This polygon shapefile contains incidents of seismic shaking in Monterey County, California. The peak ground acceleration (PGA) is listed for each ... Monterey County (Calif.).