CGS Information Warehouse: Regulatory Maps

• Published by: California Department of Conservation
• Last updated: Wednesday, July 23, 2025
• File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "...