
http://www.gps.caltech.edu/seismo/seismo.page.html
The Seismological Laboratory at the California Instititute of Technology (Caltech) in Pasadena also provides general information and data for earthquakes along the San Andreas.
http://sepwww.stanford.edu/oldsep/joe/fault_images/BayAreaSanAndreasFault.html
A virtual field trip, from geologist Joseph Dellinger, to California's San Andreas fault as it's exposed in the San Francisco Bay area.