CGS Seismic Hazards Program: Liquefaction Zones

Liquefaction Zones (Map or Tile Service)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.

Data and Resources

Field Value
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier 42518fb2-9e32-4c27-bd4f-ff94211c7f36
issued 2017-10-11T15:48:36.000Z
modified 2021-09-29T21:04:00.000Z
publisher California Department of Conservation
resource-type Dataset
source_datajson_identifier true
source_hash d183bdffb5ecf2499269797339e4c3736a7be06f
source_schema_version 1.1
theme {"Natural Resources"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • california-department-of-conservation
  • california-geological-survey
  • california-natural-resources-agency
  • caopendata
  • cgs
  • ckan
  • geo
  • geoss
  • national
  • north-america
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer gis_cadoc
maintainer_email gis@conservation.ca.gov
metadata_created 2025-11-19T21:31:15.757165
metadata_modified 2025-11-19T21:31:15.757170
notes <div style='text-align:Left;'><div><div><p><span>Liquefaction Zones (Map or Tile Service)</span></p><p><span>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.</span></p></div></div></div>
num_resources 2
num_tags 13
title CGS Seismic Hazards Program: Liquefaction Zones