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Search results
103 datasets
CGS Seismic Hazards Program: Liquefaction Zones
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML, TXT, XLSX, GPKG, GDB
This is a digital Seismic Hazard Zone Map presenting areas where liquefaction may occur during a strong earthquake. Developers of properties falling w...
Post Primacy Aquifer Exemptions
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
This post primacy aquifer exemption data depicts areas exempted by the US EPA for Class II injection after the March 14, 1983 Primacy agreement betwee...
Post Primacy Aquifer Exemptions
- Published by: California Department of Conservation
- Last updated: Saturday, September 12, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
This post primacy aquifer exemption data depicts areas exempted by the US EPA for Class II injection after the March 14, 1983 Primacy agreement betwee...
Map Sheet 48 (2025 update) - Ground Motion from PGV (10% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from PGA (2% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from SA20 (10% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from SA20 (2% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from SA10 (10% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from SA10 (2% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...
Map Sheet 48 (2025 update) - Ground Motion from SA02 (10% in 50 years)
- Published by: California Department of Conservation
- Last updated: Friday, September 11, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API
This image service is part of a collection of maps for PGA, PGV and spectral accelerations at 0.2 s (SA02), 1.0 s (SA10), and 2.0 s (SA20) to illustra...