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.S.Geological Survey-Earthquake Hazards Program <br /> inified Hazard Tool <br /> Please do not use this tool to obtain ground motion parameter values for the design code reference documents covered <br /> by the U.S.Seismic Design Maps web tools(e.g.,the International Building Code and the ASCE 7 or 41 Standard).The <br /> values returned by the two applications are not identical. <br /> Please also seethe new USGS Earthquake Hazard Toolbox for access to the most recent NSHMs for the conterminous U.S. <br /> and Hawaii. <br /> A Input <br /> Edition Spectral Period <br /> Conterminous U.S.2014(v4.0.x) Peak Ground Acceleration <br /> Latitude Time Horizon <br /> Decimal degrees Return period in years <br /> 40.41 2475 <br /> Longitude <br /> Decimal degrees,negative values for western longitudes <br /> L104.6 09 <br /> Site Class <br /> 760 m/s(B/C boundary) <br />