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11 datasets

CGS Map Sheet 48: Historic Earthquakes, 1769 to 2015 - California (Magnitude 5.0-plus)

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Epicenters of known M≥5 earthquakes from 1769 to 2016 are shown for California and a 100 km area bordering the state. Earthquakes are grouped by: M = ...

CGS Seismic Hazards Program: Alquist-Priolo Fault Hazard Zones

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB

This data set contains the Alquist-Priolo Earthquake Fault Zones as shown on the Official Alquist-Priolo Earthquake Fault Zones Maps. The dataset is c...

CGS Seismic Hazards Program: Unevaluated Areas

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
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...

Geologic Map of California (2010)

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

This edition of the Geologic Map of California was prepared in recognition of the California Geological Survey's 150th Anniversary. It is an all-digit...

CGS Map Sheet 48: Shear-wave Velocity in Upper 30m of Surficial Geology (Vs30)

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset represents simplified geologic units that have been correlated to the time-averaged seismic shear-wave velocity in the upper 30 meters of...

CGS Map Sheet 48: Earthquake Shaking Potential for California (revised 2016)

Published by: California Department of Conservation
Last updated: Sunday, March 30, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Geological Survey published maps of “Earthquake Shaking Potential for California” in 1999 and has revised the maps following each updat...

CGS Map Sheet 48: Slip Rates - UCERF3

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Data show fault-based seismic sources used in the time-independent component of the Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3)...

CGS Map Sheet 48: Slip Rates - UCERF3

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Data show fault-based seismic sources used in the time-independent component of the Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3)...

CGS Map Sheet 48: National Loss from Earthquake Damage, Conterminous United States (2014 Estimate)

Published by: California Department of Conservation
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

"Annualized Earthquake Losses (AEL) are economic losses from earthquake shaking-related building damage. These data use the most recent National ...

i03 Groundwater Sustainability Agencies MapService

Published by: California Department of Water Resources
Last updated: Wednesday, April 2, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, OGC WFS, OGC WMS, CSV, ZIP, GEOJSON, KML

The passage of the Sustainable Groundwater Management Act (SGMA) in 2014 set forth a statewide framework to help protect groundwater resources over th...