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State
CGS Seismic Hazards Program: Fault Traces recent views
State of California —
This data set contains the Alquist-Priolo Earthquake Fault Zones and fault traces as shown on the Official Alquist-Priolo Earthquake Fault Zones Map of the {quadName}... -
State
CGS Map Sheet 48: Earthquake Shaking Potential for California (revised 2016) recent views
State of California —
The California Geological Survey published maps of “Earthquake Shaking Potential for California” in 1999 and has revised the maps following each update of the... -
State
CGS Seismic Hazards Program: Landslide Zones (DOC Hosted) recent views
State of California —
Note: The DOC hosted version will be maintained through 2022, but is being retired in favor of an ArcGIS Online Hosted version of the same data. Those data can be... -
State
CGS Seismic Hazards Program: Overlapping Landslide and Liquefaction Zones recent views
State of California —
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards,... -
Federal
Geochemical data generated by projects funded by the USGS Earth Mapping Resources Initiative (ver. 10.0, June 2024) recent views
Department of the Interior —
The geochemical data included here were generated as part of the Earth Mapping Resources Initiative (Earth MRI), which was developed by the U.S. Geological Survey... -
State
CGS Seismic Hazards Program: Liquefaction Zones recent views
State of California —
Liquefaction Zones (Feature Service)This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake.... -
State
CGS Map Sheet 48: Shear-wave Velocity in Upper 30m of Surficial Geology (Vs30) recent views
State of California —
This dataset represents simplified geologic units that have been correlated to the time-averaged seismic shear-wave velocity in the upper 30 meters of the earth’s... -
State
CGS Seismic Hazards Program: Overlapping Landslide and Liquefaction Zones recent views
State of California —
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards,... -
State
CGS Seismic Hazards Program: Alquist-Priolo Fault Hazard Zones recent views
State of California —
This data set contains the Alquist-Priolo Earthquake Fault Zones as shown on the Official Alquist-Priolo Earthquake Fault Zones Maps. The dataset is comprised of... -
State
CGS Information Warehouse: Landslide Maps and Reports recent views
State of California —
Since the 1960's, the California Geological Survey (CGS) has produced numerous maps that show landslide features and delineate potential slope-stability problem... -
State
CGS Map Sheet 48: Historic Earthquakes, 1769 to 2015 - California (Magnitude 5.0-plus) recent views
State of California —
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 = 5-6; M = 6-7; M... -
State
CGS Seismic Hazards Program: Alquist-Priolo Fault Hazard Zones recent views
State of California —
This data set contains the Alquist-Priolo Earthquake Fault Zones as shown on the Official Alquist-Priolo Earthquake Fault Zones Maps. The dataset is comprised of... -
State
CGS Map Sheet 48: National Loss from Earthquake Damage, Conterminous United States (2014 Estimate) recent views
State of California —
"Annualized Earthquake Losses (AEL) are economic losses from earthquake shaking-related building damage. These data use the most recent National Seismic Hazard Maps... -
State
CGS Information Warehouse: Mineral Land Classification Maps (SMARA Petitions) recent views
State of California —
Mineral Land Classification studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq.) of 1975. To... -
State
CGS Information Warehouse: Tsunami Inundation Maps recent views
State of California —
Produced collectively by tsunami modelers, geologic hazard mapping specialists, and emergency planning scientists from the University of Southern California (USC)... -
State
CGS Seismic Hazards Program: Unevaluated Areas recent views
State of California —
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards,... -
State
CGS Information Warehouse: Mineral Land Classification Maps (SMARA Study Areas) recent views
State of California —
Mineral Land Classification studies are produced by the State Geologist as specified by the Surface Mining and Reclamation Act (SMARA, PRC 2710 et seq.) of 1975. To... -
State
CGS Seismic Hazards Program: Unevaluated Areas recent views
State of California —
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction and landslides may occur during a strong earthquake. Three types of geological hazards,... -
State
CGS Map Sheet 48: Fault-based seismic sources used in the Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3) recent views
State of California —
Data show fault-based seismic sources used in the time-independent component of the Uniform California Earthquake Rupture Forecast, Version 3 (UCERF3), which provides... -
State
CGS Information Warehouse: Regulatory Maps recent views
State of California —
Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "Zones of Required...