This guidebook contains a series of geology field trips featuring destinations along the San Andreas Fault in the region that experienced surface rupture during the Great San Francisco Earthquake of 1906. The...

This animation shows what happens to a road as lateral stresses accumulate and then are released in an earthquake. A downloadable version is also provided for offline use.

This site, from the U.S. Geological Survey, provides an introduction to the motions of tectonic plates. Descriptions of each of the four types of plate boundaries are presented along with illustrations of the motions...