The San Diego Seismic Safety Study is a series of maps that indicate the likely geologic hazards throughout the city. These maps may be used to evaluate the relative risk within a region or to determine if a geotechnical report is required for development or building permits.

These maps do not furnish site specific information and should be used only as a guide when evaluating risk. They are intended to be an indicator of what to expect at your site and provide general geologic hazard information.

Please note that the California Department of Conservation continuously updates the Alquist-Priolo Earthquake Fault Zones (City of San Diego - Geologic Hazard Category 11) within the State of California. For the most up-to-date limits of the Alquist-Priolo Earthquake Fault Zone refer to the following:

Earthquake Hazard Zone app EQZapp Map:

https://www.conservation.ca.gov/cgs/geohazards/eq-zapp

Geologic Hazards and Faults Maps

Click a grid tile on the map below. After the PDF opens, you can zoom in to find a specific parcel and print a close-up view.

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