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Search California Department of Conservation datasets

90 datasets

CGS Map Sheet 58: Deep-Seated Landslide Susceptibility

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The Susceptibility to Deep-Seated Landslides map covers the entire state of California and was originally published in May of 2011 as CGS Map Sheet 58...

Map Sheet 48 (2025 update) - MMI from PGV (2% in 50 years)

  • Published by: California Department of Conservation
  • Last updated: Monday, January 5, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API

The California Geological Survey (CGS) Map Sheet 48 (MS48) provides a depiction of expected ground shaking intensity from future earthquakes across th...

CGS SHZ Unevaluated Areas

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

CGS Seismic Hazards Program: Unevaluated Areas

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

Earthquake Zones of Required Investigation Maps and Reports

  • Published by: California Department of Conservation
  • Last updated: Monday, January 5, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API

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

CGS Landslide Zones

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

CGS Seismic Hazards Program: Landslide Zones

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geol...

RegMapsLinks 20251120

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

Regulatory Maps

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

CGS Liquefaction Zones

  • Published by: California Department of Conservation
  • Last updated: Tuesday, January 6, 2026
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction may occur during a strong earthquake. Developers of properties falling w...