South of Parkfield, the fault is locked, meaning the two plates do not move against one another. North of Parkfield, the San ...

As seismologists review available data, they often revise the earthquake's reported magnitude and update shake-severity maps ... both occurred along the San Andreas fault, said Robert Skoumal ...

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 ...

The San Andreas Fault line, which stretches some 800 miles across California, marks the boundary between the Pacific and ...

Rather, two plates move against each other, building up tension, then releasing the tension in a sudden and often violent jerk. This sudden jerk creates an earthquake. The San Andreas Fault is ...

That two inches -- the average distance the San ... San Andreas fault. The West Coast is ground zero for several fault lines due to the movement of the earth between two major tectonic plates ...