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17 datasets

Geologic Map of California (2010)

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 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...

Special Report 230: Geologic Gems of California State Parks

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API

California is a veritable treasure chest of nationally acclaimed natural landmarks and much adored scenery. This geologic legacy on display in the lan...

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

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 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...

Fault Activity Map of California (2010)

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API

"This digital database contains the faults shown on the Fault Activity Map of California by Charles W. Jennings and William A. Bryant published i...

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

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 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: Historic Earthquakes, 1769 to 2015 - California (Magnitude 5.0-plus)

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 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 Information Warehouse: Regulatory Maps

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 2025
  • File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

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

CGS Map Sheet 48: Slip Rates - UCERF3

  • Published by: California Department of Conservation
  • Last updated: Friday, April 4, 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: Friday, April 4, 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: Friday, April 4, 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 ...

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