San Andreas Fault
The San Andreas Fault
is a right-lateral geological fault
that runs roughly southwest to northeast along the western coast of North America
. This is a transform boundary
between the Pacific Plate and the North American Plate. Many major earthquakes
have been caused by slipping and ruptures of this fault.
Parkfield, California, a small town that lies on the fault, has been the location of several magnitude-6 quakes.
The San Andreas Fault has had three major earthquakes in the last 200 years: