Quake-related information—maps, reports, advice—for Northern California.
Alquist-Priolo Earthquake Fault Zoning Act—A thorough guide to this crucial law affecting property owners all over the state, from the California Geological Survey.
Central California Earthquake Report—A weekly notice from Seismo-Watch covering the coast from the Bay Area to San Luis Obispo.
The Hayward Fault—Start here to learn more about this treacherous East Bay fault.
Hayward Fault History and Maps—In-depth research results on this fault from the USGS.
Hayward Fault Information—The Berkeley Seismological Lab has a deep, functional site covering the fault.
Hayward Fault: Economic Losses—The Bureau of Labor Statistics estimates some impacts that exceed those of Hurricane Katrina.
Hollister: Calaveras Fault Tour—A virtual field trip through the "earthquake capital of the world" by Stanford's Joe Dellinger.
Putting Down Roots in Earthquake Country, Northern California—An excellent roundup from the USGS.
The San Andreas Fault—Home page for maps, pictures and information on the state's biggest fault.
San Francisco Bay Area: Quake Probability Map 2003-2032—The U.S. Geological Survey published this map showing the likelihood before 2032 of a quake larger than 6.7 on the Bay Area's various fault lines.
San Francisco Bay Area: Seismic Hazard Zone Maps—These map landslide and liquefaction hazards for most of the southern Bay Area.
San Francisco Bay Area: Quake Probability Forecast—Science bats against Nature in the next match of an endless series: San Francisco civilization versus earthquakes.
San Francisco Bay Area: Earthquake Maps and Information—The Association of Bay Area Governments (ABAG) is a pioneer in serving useful maps and reports to the public on the Web.
CISN Strong Motion Data Center—A quick source of engineering-related data from the California Integrated Seismic Center.
