Enter your zip code to see maximum and minimum SS, S1, and PGA values along with associated coordinates. The values and coordinates are based on the earthquake ground motion maps in, equivalently, the 2009 NEHRP Recommended Seismic Provisions, the 2010 ASCE-7 Standard, and the 2012 International Building Code. This tool is meant to be a guide, as seismic information is subject to change.

seismic zones