2002 National Seismic Hazard Maps Central and Eastern US Maps

This page contains probabilistic seismic hazard maps for the Eastern United States. Six maps are presented: peak ground acceleration (pga), 5-Hz spectral acceleration, and 1-Hz spectral acceleration (5% damping), each for 10%- and 2%-in-fifty-years probability of exceedance.

To view and print the postscript (ps) files from your browser, download, (free), the GSview utility. To view and print the PDF files from your browser, download, (free), the Adobe Acrobat Reader.

Hazard Maps
Spectral Acceleration (%g)	Probability of Exceedance in 50 Years
	2%	10%
Peak Ground Acceleration	[GIF | PDF | PS]	[GIF | PDF | PS]
0.2 Second	[GIF | PDF | PS]	[GIF | PDF | PS]
1.0 Second	[GIF | PDF | PS]	[GIF | PDF | PS]

Although these maps have been used by the U.S. Geological Survey, no warranty, expressed or implied is made by the USGS as to the accuracy of the maps and related material nor shall the fact of distribution constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.