Please do not use this tool to obtain ground motion parameter values for the design code reference documents covered by the U.S. Seismic Design Maps web tools (e.g., the International Building Code and the ASCE 7 or 41 Standard). The values returned by the two applications are not identical.

Please also see the new USGS Earthquake Hazard Toolbox for access to the most recent NSHMs for the conterminous U.S. and Hawaii.

Earthquake Hazard and Probability Maps
3000 km
1000 mi
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Unavailable
Input
Hazard Curve

Please select “Edition”, “Location” & “Site Class” above to compute a hazard curve.

Hazard Curves1e-21e-11e+0Ground Motion (g)1e-61e-51e-41e-31e-21e-1Annual Frequency of Exceedance
Uniform Hazard Response Spectrum0.00.51.01.52.02.53.03.54.04.55.0Spectral Period (s)0.00.10.20.30.40.50.60.70.80.91.0Ground Motion (g)
Component Curves for 1e-21e-11e+0Ground Motion (g)1e-61e-51e-41e-31e-21e-1Annual Frequency of Exceedence
Deaggregation

Deaggregation calculations are not available for the selected edition.

-515355575958.587.576.565.554.5510152025303540-515355575958.587.576.565.554.5
History
  1. DeleteConterminous U.S. 2014 (v4.0.x)