Recommend reading! Learn more about Plate Tectonics Theory at these online resources prepared by the Smithsonian Institution and U.S. Geological Survey:
This Dynamic Earth (The Story of Plate Tectonics) - this on-line booklet is used for teaching plate tectonics at schools and universities around the world. It has a companion map:
This Dynamic Planet (World Map of Volcanoes, Earthquakes, Impact Craters, and Plate Tectonics
(see Figure 4.66).
Crustal age of the Seafloor Map: National Oceanic and Atmospheric Administration, National Geophysical Data Center [large image]
Field guides to the San Andreas Fault and other regional faults in the San Francisco Bay region.
Where’s the San Andreas Fault? A Guidebook to Tracing the Fault on Public Lands in the San Francisco Bay Region
Where's the Hayward Fault? A Green Guide to the Fault
Geology Field Trips To California's Central Coast