Seismic-Hazard Maps for the Conterminous United States, 2008

Mark D. Petersen; Arthur D. Frankel; Stephen C. Harmsen; Charles S. Mueller; Kathleen M. Haller; Russel L. Wheller; Robert L. Wesson; Yuehua Zeng; Oliver S. Boyd; David M. Perkins; Nicolas Luco; Edward H. Field; Christopher J. Wills; Kenneth S. Rukstales

doi:10.3133/sim3195

Seismic-Hazard Maps for the Conterminous United States, 2008

Scientific Investigations Map 3195

Prepared in cooperation with the California Geological Survey

By: Mark D. Petersen, Arthur D. Frankel, Stephen C. Harmsen, Charles S. Mueller, Kathleen M. Haller, Russel L. Wheller, Robert L. Wesson, Yuehua Zeng, Oliver S. Boyd, David M. Perkins, Nicolas Luco, Edward H. Field, Christopher J. Wills, and Kenneth S. Rukstales

https://doi.org/10.3133/sim3195

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Abstract

Probabilistic seismic-hazard maps were prepared for the conterminous United States portraying peak horizontal acceleration and horizontal spectral response acceleration for 0.2- and 1.0-second periods with probabilities of exceedance of 10 percent in 50 years and 2 percent in 50 years. All of the maps were prepared by combining the hazard derived from spatially smoothed historic seismicity with the hazard from fault-specific sources. The acceleration values contoured are the random horizontal component. The reference site condition is firm rock, defined as having an average shear-wave velocity of 760 m/s in the top 30 meters corresponding to the boundary between NEHRP (National Earthquake Hazards Reduction program) site classes B and C. This data set represents the results of calculations of hazard curves for a grid of points with a spacing of 0.05 degrees in latitude and longitude. The grid of points were contoured to produce the final representation of the seismic-hazard. These maps are intended to summarize the available quantitative information about seismic ground motion hazard for the conterminous United States from geologic and geophysical source.

Suggested Citation

Petersen, M.D., Frankel, A.D., Harmsen, S., Mueller, C.S., Haller, K., Wheller, R.L., Wesson, R.L., Zeng, Y., Boyd, O.S., Perkins, D.M., Luco, N., Field, N., Wills, C.J., Rukstales, K.S., 2011, Seismic-Hazard Maps for the Conterminous United States, 2008: U.S. Geological Survey Scientific Investigations Map 3195, Sheets 1-6: 31 inches x 24 inches, Map PDF, GIS data zip; Metadata; Geologic map database, https://doi.org/10.3133/sim3195.

ISSN: 2329-132X (online)

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Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Seismic-Hazard Maps for the Conterminous United States, 2008
Series title	Scientific Investigations Map
Series number	3195
DOI	10.3133/sim3195
Year Published	2011
Language	English
Publisher	U.S. Geological Survey
Publisher location	Reston, VA
Contributing office(s)	National Earthquake Hazards Reduction Program
Description	Sheets 1-6: 31 inches x 24 inches, Map PDF, GIS data zip; Metadata; Geologic map database
Country	United States
Projection	Albers eaul-area conic
Scale	7000000
Additional Online Files (Y/N)	Y