|Use our IBC Seismic Design Categories map to easily obtain the seismic design category and spectral response acceleration parameter (Section 1613 of the IBC 2015) for any location in the contiguous United States, Puerto Rico and Alaska. You can click on the map below to determine the seismic design category (SDC) and response parameter (SDS) for that location.
The seismic design category (SDC) is calculated based on the design spectral response acceleration (SDS at Site Class = D, Risk Cat. = II), provided by the USGS Seismic API.
If you need to gather seismic data programmatically, please consider our API Service.
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