Quaternary Links and Helpful Resources

Links to sites related to Quaternary-active faults, earthquakes, and other hazards in the San Francisco Bay region.

San Francisco Bay Region Geology Website
This older website provides access to additional resources, maps, and information about the regional geology of the San Francisco Bay region.

Fault Mapping

• USGS Quaternary Fault Map Database
• California Geological Survey Regulatory Zone Mapping

Fault Maps and other geological publications

• USGS Publications Warehouse
• Western Region USGS Publications
• California Geological Survey Publications

More information on San Francisco Bay region hazards

• USGS Earthquake Page
• USGS Northern California Earthquake Page
• Association of Bay Area Governments Earthquake and other hazards Page
• USGS Northern California Landslides
• San Francisco Museum 1906 Earthquake page
• Northern California Earthquake Data Center - Technical Data
• University of California Seismological Laboratory - Technical Data
• Additional USGS information about the San Francisco Bay region

For more information about what you can do to prepare for future earthquakes, read Putting Down Roots in Earthquake Country.