BSSC Tool for 2020 NEHRP Provisions Seismic Design Map Values  


This web-based interface tool is to allow users to preview seismic design map and related parameter values proposed for the 2020 NEHRP Recommended Seismic Provisions for New Buildings and Other Structures. The ground motion values for both Conterminous U.S. (CONUS) and Outside Conterminous U.S. (OCONUS) locations, including Alaska, Hawaii, Guam and the Northern Mariana Islands, Puerto Rico and the U.S. Virgin Islands, and American Samoa, are extracted directly from the U.S. Geological Survey (USGS) web services. If issues are encountered, or if there are recommendations for improvement, please contact Jiqiu Yuan, Executive Director of BSSC.

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