About this Dataset

CGS Seismic Hazards Program: Liquefaction Zones

This is a digital Seismic Hazard Zone Map presenting areas where liquefaction may occur during a strong earthquake. Developers of properties falling within a seismic hazard zone may be required to investigate the potential hazard and mitigate its threat during the local permitting process.
Organization: State of California
Last updated: 2025-07-23T16:30:30.481243
Tags: california-department-of-conservation, california-geological-survey, california-natural-resources-agency, caopendata, cgs, doc, liquefaction

Tables

Table 1

@usgov.ca_gov_cgs_seismic_hazards_program_liquefaction_zones_8f7aa.table_1

137.6 kB
1,987 rows
11 columns

CREATE TABLE table_1 (
  "objectid" BIGINT,
  "quad_name" VARCHAR,
  "released" TIMESTAMP,
  "revised" VARCHAR,
  "prev_dates" VARCHAR,
  "geopdflink" VARCHAR,
  "reportlink" VARCHAR,
  "comments" VARCHAR,
  "globalid" VARCHAR,
  "shape_area" DOUBLE  -- Shape, Area,
  "shape_length" DOUBLE  -- Shape, Length
);