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6 datasets

i08 FaultLines SacramentoValley

Published by: California Department of Water Resources
Last updated: Thursday, June 5, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This data set is a series of polylines denoting fault lines mapped in USGS Publication MF-1790, "Geologic Map of the Late Cenozoic Deposits of the Sac...

i08 FaultCrossings SWP ObservationPoints

Published by: California Department of Water Resources
Last updated: Thursday, June 5, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Fault Descriptions of locations crossing the California Aqueduct, Coastal Branch, North Bay Aqueduct, and South Bay Aqueduct. Taken from "State Water ...

i08 FaultCrossings StateWaterProject

Published by: California Department of Water Resources
Last updated: Thursday, June 5, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Approximate locations of faults crossing the California Aqueduct, Coastal Branch, North Bay Aqueduct, and South Bay Aqueduct. Taken from "State Water ...

CGS Information Warehouse: Regulatory Maps

Published by: California Department of Conservation
Last updated: Thursday, June 5, 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 "...

Earthquake Zones of Required Investigation

Published by: California Department of Conservation
Last updated: Wednesday, June 4, 2025
File types: HTML, ARCGIS GEOSERVICES REST API

The California Earthquake Hazards Zone Application ("EQ Zapp") is an online map that allows anyone with a computer, tablet or smartphone to...

Geologic Map of California (2010)

Published by: California Department of Conservation
Last updated: Thursday, June 5, 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...