Earthquake Tracker: A collaborative effort to track and monitor the ELF (Extremely Low Frequency) magnetic field fluctuations, generated by the earth near fault zones, as a possible precursor to large earthquakes in Northern California.
Hayward Fault Tour: This photographic tour follows the Hayward fault, picturing some of the most easily recognized surface features, progressing from Fremont to San Pablo Bay, California.
Latest California Seismic Events: Earthquake map for California, including recent earthquake magnitude, depth, and location information. Updated every minute.
Museum of the City of San Francisco: History museum site features several exhibits about historical San Francisco earthquakes. Includes a collection of newspaper clippings, police reports, eyewitness accounts and photos.
Northern California Earthquake Information: Current earthquake information from the USGS.
Redwood City (California) Public Seismic Network: Earthquake data files, links to other Public Seismic Network sites around the world, links to other sources of on-line information on seismology, seismic equipment, and earthquakes.
Seismic Hazard Zonation Program: Map index designed to assist cities and counties in protecting the public safety from the effects of earthquake-triggered ground failure. Issued by the California Department of Conservation.
Southern California Earthquake Center (SCEC) Data Center: The data center maintains a searchable archive of earthquake data for research in seismology and earthquake engineering. Includes general information, clickable fault maps, stations and instrumentation, and educational resources.
The Daly City Earthquake of 1957: Describes the Daly City (California) Earthquake of 1957, including eyewitness reports and a WAV sound recording.
The Next Big Earthquake: Informational pamphlet about San Francisco Bay Area earthquakes.
USGS Pasadena CA Field Office: Real-time information and archives of past earthquakes and seismic hazards in Southern California, plus preparedness, research and monitoring.