The following fault maps are now available for 2010. One shows the faults, and the other shows fault activity. Very handy if you’re living on one.
2010 Geologic Map of California:
http://www.quake.ca.gov/gmaps/GMC/stategeologicmap.html
2010 Fault Activity Map of California:
http://www.quake.ca.gov/gmaps/FAM/faultactivitymap.html
Note that the overlay data for each map is a little slow to load in after zooming, so give it a second while you zoom.