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Quaternary faults offshore of California

Dates

Publication Date
Start Date
1982
End Date
2020

Citation

Walton, M.A.L., Papesh, A.G., Johnson, S.Y., Conrad, J.E., and Brothers, D.S., 2020, Quaternary faults offshore of California: U.S. Geological Survey data release, https://doi.org/10.5066/P91RYEZ4.

Summary

A comprehensive map of Quaternary faults has been generated for offshore of California. The Quaternary fault map includes mapped geometries and attribute information for offshore fault systems located in California State and Federal waters. The polyline shapefile and matching KML file have been compiled from previously published mapping where relatively dense, high-resolution marine geophysical data exist. The data are accompanied by a PDF containing citations for the compiled source data. Most of the marine geophysical data used for mapping have been processed, merged, and released by the USGS in maps, data releases, and journal publications in support of the California Seafloor Mapping Program and the U.S. West Coast and Alaska Marine [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

qFaults_offshore_california_2020.kml
“KML version of qFaults shapefile”
1.53 MB application/vnd.google-earth.kml+xml
qFaults_offshore_california_2020_references.pdf
“qFaults source references”
37.1 KB application/pdf
qFaults_offshore_california_2020_map.png thumbnail 3.62 MB image/png
Shapefile: qFaults_offshore_california_2020.zip
qFaults_offshore_california_2020.cpg 5 Bytes
qFaults_offshore_california_2020.dbf 1.13 MB
qFaults_offshore_california_2020.prj 145 Bytes
qFaults_offshore_california_2020.sbn 10.79 KB
qFaults_offshore_california_2020.sbx 484 Bytes
qFaults_offshore_california_2020.shp 245.18 KB
qFaults_offshore_california_2020.shx 8.64 KB

Purpose

The geographic information systems (GIS) shapefile presented here contains offshore fault geometries, locations, ages, slip rates, and relevant published reference information (please refer to the rest of the metadata for detailed attribute information and references). This compilation represents a significant update to previous national and regional fault datasets, which have been developed without the benefit of new high-resolution datasets. The geodatabase has been designed for easy ingestion by partners including the California Geological Survey and the USGS Quaternary Fault and Fold Database, and to be used to improve seismic hazards products, especially the USGS National Seismic Hazard Maps, the Uniform California Earthquake Rupture Forecast, and the Southern California Earthquake Center Community Fault Model. Other stakeholders include academic scientists, consultants, community planners and managers, the risk assessment community, and the general public.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P91RYEZ4

Shapefile Extension

boundingBox
minY32.335488621708315
minX-124.44440333020623
maxY40.27689773436198
maxX-117.11708008095184
filesqFaults_offshore_california_2020.cpg
qFaults_offshore_california_2020.dbf
qFaults_offshore_california_2020.prj
qFaults_offshore_california_2020.sbn
qFaults_offshore_california_2020.sbx
qFaults_offshore_california_2020.shp
qFaults_offshore_california_2020.shx
geometryTypeMultiLineString
nameqFaults_offshore_california_2020
nativeCrsEPSG:4326

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