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California Liquefaction Zones

State of California
  • Added 13 Sep 2018
  • Updated 26 Jun 2019

This layer is a component of Web server for AP and SHZ zones.

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, referred to as seismic hazard zones, may be featured on the map: 1) liquefaction, 2) earthquake-induced landslides, and 3) overlapping liquefaction and earthquake-induced landslides. In addition, a fourth feature may be included representing areas not evaluated for liquefaction or earthquake-induced landslides. Developers of properties falling within any of the three zones may be required to investigate the potential hazard and mitigate its threat during the local permitting process.

© Seismic Hazards Progam, California Geological Survey, California Department of Conservation

Information

Copyright Copyright may apply. Please check the source for more information.
RegionsCalifornia

Technical Details

Layer ID 97126
Data type Vector polygon
Feature count 1696
Attributes QUAD_NAME, PREV_DATES, GEOPDFLINK, REVISED, REPORTLINK, COMMENTS, CREATION_DATE, RELEASED, REVISION_DATE
Services Vector Query API

History

Sourcespatialservices.conservation.ca.gov
Last updated 26 Jun 2019 ago
Last checked 4 Mar 2021 ago
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