The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California. It forms the tectonic boundary between the Pacific Plate and the North ...

Remote sections along California’s massive San Andreas Fault, where large earthquakes regularly occur, may be primed to shake ...

Movement along the San Andreas Fault was to blame. The North American and Pacific tectonic plates had moved past each other by more than 15 feet — compared to an annual average of two inches.

SAN FRANCISCO — An earthquake registering a magnitude of 3.7 shook part of the San Francisco Bay Area and people reported feeling a quick jolt. There were no immediate reports of injuries or major ...

That two inches -- the average distance the San Andreas fault moves each year -- has the potential to unleash an earthquake of epic proportions directly under the San Francisco and San Jose area ...

This sudden jerk creates an earthquake. The San Andreas Fault is undoubtedly the most famous transform boundary in the world. To the west of the fault is the Pacific plate, which is moving northwest.

A magnitude 2.5 aftershock centered in the same area on the San Andreas fault occurred at 9:39 a.m. and a magnitude of 3.0 at 10:48 a.m. Friday, according to the USGS. People posted on social ...