| 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. |
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