CGS Sitemap

This is a directory of webpages on the California Geological Survey's website.

About CGS
- A Brief History of the California Geological Survey
- About the California Geological Survey
- CGS Public Calendar of Events
- Contact the California Geological Survey
- Geologic Hazard Review
- State Geologists Past and Present
- The California Mineral Resources Program
- The California Regional Geologic and Landslide Mapping Program
- The California Seismic Hazards Program
- The California Geological Survey Emblem
Climate Action
- Forest Biomass to Carbon-Negative Biofuels Pilot Program
Climate, Carbon, and Geology
- Geologic Carbon Sequestration in California
Education Resources
- Geology Resources for Education
- Teacher Feature geology articles
- The California Geotour
Forests and Watersheds
- The California Forest and Watershed Geology Program
Geologic Hazard Assessment
- Alquist-Priolo Earthquake Fault Zones
- California Seismic Hazard Zones
- Essential Facility Review
- School Project Review FAQs
- Status of CGS Review of DSA Projects
- Submit a School Project
Geologic Hazards
- Geologic Hazards
Geologic Hazards: Earthquakes
- California's Big Earthquakes
- Earthquake Catalogs
- Earthquake Loss Estimation
- EQ Zapp: California Earthquake Hazards Zone Application
- Geologic Hazard Abatement Districts
- License and Use Agreements for California Earthquake History, Catalogs, and Earthquake Source Point Data
- Map Sheet 48: Earthquake Shaking Potential for California
- Map Sheet 49: Epicenters of and Areas Damaged by M≥5 California Earthquakes, 1800-1999
- Maps of Known Active Fault Near-Source Zones in California and Adjacent Portions of Nevada
- Northridge Earthquake, January 17, 1994
- Preliminary Release Announcements
- Special Publication 117A: Guidelines for Evaluating and Mitigating Seismic Hazards in California
- Special Publication 118: Recommended Criteria for Delineating Seismic Hazard Zones in California
- Special Publication 42: Earthquake Fault Zones - A Guide for Government Agencies, Property Owners / Developers, and Geoscience Practitioners for Assessing Fault Rupture Hazards in California (2018)
- The 1906 Great San Francisco Earthquake
- The 1933 Long Beach Earthquake
- The 1989 Loma Prieta Earthquake
- The 1992 Cape Mendocino Earthquake and Tsunami
- The 1992 Landers-Big Bear Earthquakes
- UCERF3: The Long-Term Earthquake Forecast for California
Geologic Hazards: Landslides
- 2023 California Landslide Response
- El Niño, California Precipitation, and Landslides
- Hazards From "Mudslides"...Debris Avalanches and Debris Flows in Hillside and Wildfire Areas
- Highway Corridor Landslide Hazard Mapping
- Landslide Response at Bluebird Canyon and Vicinity 1978-1998
- Landslides
- Map Sheet 58: Susceptibility to Deep-Seated Landslides in California
- Watershed Mapping
Geologic Hazards: Mineral Hazards
- Map Sheet 59: Reported Historic Asbestos Mines, Historic Asbestos Prospects, and Other Natural Occurrences of Asbestos in California
- Special Report 192: Relative Likelihood for the Presence of Naturally Occurring Asbestos in Eastern Sacramento County, California
Geological Mapping and Modeling
- 3D Geological Modeling
- About Geologic Maps and Mapping
- History of The Geologic Map of California
- Southern San Joaquin Basin 3D Geo Project
Help
- CGS Sitemap
Library & Publications
- CGS Library
- CGS Publications
- Current Journals
- Glossary of CGS Publication Series
- Guidelines for Reviewing Geologic Reports
- Index to Articles on California Mines in the Mining and Scientific Press (1860 - 1922)
- Publication Announcements
- Publications by County
- Publications of the California Geological Survey
- Teacher Resource Center Borrowing Policy
Maps and Data
- 2010 Fault Activity Map of California
- 2010 Geologic Map of California
- Albion River Watershed Maps and Data
- Big River Watershed Maps, Data and Publications
- California Regional Geologic Maps
- California State Plane Coordinate System
- CGS Information Warehouse
- Download North Coast Watersheds Mapping Project Data
- Elk River Watershed Maps
- Freshwater River Watershed Maps
- Geologic Maps of Jackson Demonstration State Forest
- Gualala River Watershed Maps, Data, and Publications
- Maps
- Mattole River Watershed Maps, Data, and Publications
- North Coast Watersheds Mapping Project
- Noyo River Watershed Maps
- Preliminary Regional Geologic Maps
- Redwood Creek Watershed Maps
- Title II Geologic Data Compilation Project: San Francisco, San Jose, Santa Cruz
- Title II Geologic Data Compilation Project: Ukiah, Santa Rosa
- Title II Geologic Data Compilation Project: Weed, Redding
- Watershed Maps and GIS Data
- Watersheds Map Printing Tips
Mineral Hazards
- Indoor Radon
- Mercury in the Environment
- Mineral Hazards of California
- Naturally Occurring Asbestos in Eastern Sacramento County
- Naturally Occurring Asbestos in El Dorado County
- Naturally Occurring Asbestos in Placer County
- Naturally-Occurring Asbestos in California
Mineral Resources
- A Glossary of Rock and Mineral Terminology
- Ask Rocky
- California Historical Mineral Commodity Production Data Dashboard
- California Mineral Production Reports and Data
- California Minerals Program StoryMap
- California's Minerals
- Gold
- Map of California Historic Gold Mines (Miscellaneous Map 9)
- SMARA Mineral Land Classification
- The Discovery of Gold in California
- Think you found a meteorite?
Popular Geology
- Benitoite: California's State Gem
- CALIFORNIA GEOLOGY™ Magazine
- CGS Notes
- Fossils
- Recommended Guidebooks
- Sabertoothed Cat: California's State Fossil
- Serpentine: California's State Rock
- The CGS Calendar
Seismic Shaking Hazard Assessment
- Ground Motion Interpolator
- Probabilistic Seismic Hazards Assessment
SMIP Seminars
- Proceedings of SMIP06 Seminar on Utilization of Strong-Motion Data
- SMIP 1989 Seminar
- SMIP 1990 Seminar
- SMIP 1991 Seminar
- SMIP 1992 Seminar
- SMIP 1993 Seminar
- SMIP 1994 Seminar
- SMIP 1995 Seminar
- SMIP 1996 Seminar
- SMIP 1997 Seminar
- SMIP 1998 Seminar
- SMIP 1999 Seminar
- SMIP 2000 Seminar
- SMIP 2001 Seminar
- SMIP 2002 Seminar
- SMIP 2003 Seminar
- SMIP 2004 Seminar
- SMIP 2005 Seminar
- SMIP 2006 Seminar
- SMIP 2007 Seminar
- SMIP 2008 Seminar
- SMIP 2009 Seminar
- SMIP 2012 Seminar
- SMIP 2013 Seminar
- SMIP 2014 Seminar
- SMIP 2015 Seminar
- SMIP 2016 Seminar
- SMIP 2017 Seminar
- SMIP 2018 Seminar
- SMIP 2021 Seminar
- SMIP 2022 Seminar
Tributes
- In Memoriam: James Frazier “Jim” Davis (1931–2023)
Tsunami
- California Tsunami Maps
- Tōhoku-oki Earthquake and Tsunami, March 11, 2011
- Tonga Tsunami, January 15, 2022
- Tsunami Educational Materials and FAQs
- Tsunami Technical Reports and Data
- Tsunamis
- What to do Before, During, and After a Tsunami
Tsunami Maps
- Alameda County Tsunami Hazard Areas
- Contra Costa County Tsunami Hazard Areas
- Del Norte County Tsunami Hazard Areas
- Humboldt County Tsunami Hazard Areas
- Los Angeles County Tsunami Hazard Areas
- Marin County Tsunami Hazard Areas
- Mendocino County Tsunami Hazard Areas
- Monterey County Tsunami Hazard Areas
- Napa County Tsunami Hazard Areas
- Orange County Tsunami Hazard Areas
- San Diego County Tsunami Hazard Areas
- San Francisco County Tsunami Hazard Areas
- San Luis Obispo County Tsunami Hazard Areas
- San Mateo County Tsunami Hazard Areas
- Santa Barbara County Tsunami Hazard Areas
- Santa Clara County Tsunami Hazard Areas
- Santa Cruz County Tsunami Hazard Areas
- Solano County Tsunami Hazard Areas
- Sonoma County Tsunami Hazard Areas
- Ventura County Tsunami Hazard Areas