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6/7/24, 9:58 AM <br />U.S. Geological Survey - Earthquake Hazards Program <br />Unified Hazard Tool <br />Unified Hazard Tool <br />Please do not use this,tooI to obtain ground motion parameter values forth <br />reference documents covered by the U.S. Seismic Design Maps web tools (e <br />CITY OF SANTA ANA <br />Planning and Building Agency <br />may, lS. <br />Approved <br />FOR PERMIT ISSUANCE <br />Master ID: <br />Wgign code <br />International Building Code and the ASCE 7 or 41 Standard). The values returned by the two <br />applications are not identical. <br />Please also see the new USGS Earthquake Hazard Toolbox for access to the most recent NSHMs <br />for the conterminous U.S. and Hawaii. <br />^ Input <br />Edition <br />Spectral Period <br />Dynamic: Conterminous U.S. 2014 (u... Peak Ground Acceleration <br />Latitude <br />Decimal degrees <br />Time Horizon <br />Return period in years <br />33.73716 475 St. Barbara School <br />Longitude <br />Decimal degrees, negative values for western longitudes <br />-117.93881 <br />Site Class <br />259 m/s (Site class D) <br />https:Hearthquake.usgs.gov/hazards/interactive/ 1 /4 <br />