2002 NSHM Figures

Figures corresponding to the 2002 U.S. Geological Survey National Seismic Hazard Maps are available for individual download below, or can be downloaded in their entirety from this zip file (12Mb). These figures are probabilistic ground motion maps for Peak Ground Acceleration (PGA), 1Hz (1.0 second SA), and 5Hz (0.2 second SA). All ground motion probabilities are computed for the B/C Boundary (V_s³⁰ = 760 m/s).

Click a column header to sort by values in that column. Shift+Click to sort by multiple columns.

Region Name	Return Period	Spectral Acceleration	Download
Conterminous U.S.	10% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Conterminous U.S.	2% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Conterminous U.S.	10% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Conterminous U.S.	2% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Conterminous U.S.	10% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Conterminous U.S.	2% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Western U.S.	2% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Western U.S.	10% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Western U.S.	10% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Western U.S.	2% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Western U.S.	10% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Western U.S.	2% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
California-Nevada	2% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
California-Nevada	2% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
California-Nevada	10% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
California-Nevada	10% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
California-Nevada	10% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
California-Nevada	2% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Pacific Northwest	2% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Pacific Northwest	2% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Pacific Northwest	10% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Pacific Northwest	2% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Pacific Northwest	10% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Pacific Northwest	10% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Central/Eastern U.S.	10% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Central/Eastern U.S.	2% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]
Central/Eastern U.S.	10% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Central/Eastern U.S.	2% in 50 Years	5Hz (0.2 Seconds)	[GIF | PS | PDF]
Central/Eastern U.S.	2% in 50 Years	Peak Ground Acceleration	[GIF | PS | PDF]
Central/Eastern U.S.	10% in 50 Years	1Hz (1.0 Second)	[GIF | PS | PDF]