USGS Science Topics > Specific things by name
San Andreas Fault
Geological fault system running through the southern half of California, on which earthquakes are common. The fault is a transform fault with right-lateral strike-slip motion.
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Ground shaking caused by the sudden release of accumulated strain by an abrupt shift of rock along a fracture in the earth or by volcanic or magmatic activity, or other sudden stress changes in the earth.
Movement of earth materials along fracture surfaces.
The structural forces affecting the deformation, uplift, and movement of the earth's crust.
Areas characterized by fractures in the Earth's crust. [Adapted from UGSG Circ 1048]