Use the following websites to gather information:
http://www.data.scec.org/earthquake/
http://earthquake.usgs.gov/earthquakes/states/?region=California
http://www.quake.ca.gov/
http://www.conservation.ca.gov/cgs/geologic_hazards/earthquakes/Pages/index.aspx
http://www.earthquakecountry.info/roots/index.php
http://academic.emporia.edu/aberjame/student/nester1/sandreas.htm
http://pubs.usgs.gov/of/2005/1127/chapter1.pdf
http://www.sanandreasfault.org/
http://www.ready.gov/earthquakes
http://www.scec.org/ucerf2/
http://calteches.library.caltech.edu/190/1/mapping.pdf
http://www.usgs.gov/newsroom/article.asp?ID=1914#.Ue_vRW3aKYg
http://www.data.scec.org/earthquake/
http://earthquake.usgs.gov/earthquakes/states/?region=California
http://www.quake.ca.gov/
http://www.conservation.ca.gov/cgs/geologic_hazards/earthquakes/Pages/index.aspx
http://www.earthquakecountry.info/roots/index.php
http://academic.emporia.edu/aberjame/student/nester1/sandreas.htm
http://pubs.usgs.gov/of/2005/1127/chapter1.pdf
http://www.sanandreasfault.org/
http://www.ready.gov/earthquakes
http://www.scec.org/ucerf2/
http://calteches.library.caltech.edu/190/1/mapping.pdf
http://www.usgs.gov/newsroom/article.asp?ID=1914#.Ue_vRW3aKYg