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US Peak Ground Acceleration Seismic Map

(10% in 50 years exceedance)

US Peak Ground Acceleration Seismic Map

US UBC 1997 Seismic Zone Map

PGA is an important measure for earthquake engineering and in due diligence, for example in Fannie Mae's 2014 update in their Property Needs Assessment requirements. Download the PGA Seismic map below to see this represented on a United States map.

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