San Andreas Fault
A 3.9 magnitude earthquake struck an area of Southern California near San Bernardino Monday, according to the U.S. Geologicial Survey.
Excessive groundwater pumping for irrigation in California’s agricultural belt can stress the San Andreas Fault, potentially increasing the risk of future small earthquakes, a new study suggests.
With a network of sensors spread across the UC Berkeley campus, scientists are hoping to get a clear picture — and sounds — of the Hayward Fault’s next big move.
Experts say a bigger earthquake along the lesser-known fault that gave Southern California a moderate shake could do more damage to the region than the long-dreaded “Big One” from the more famous San Andreas Fault.
A new study suggests certain earthquake fault segments long thought to be stable may rupture and cause a mega-quake.
Two light earthquakes struck California’s Central Valley Friday, hours after a temblor shook the Los Angeles area.