What's the Elsinore fault? California has long been a hotbed of seismic activity, with notorious San Andreas being the ...

The Elsinore Fault Zone, a major fault line in Southern California and part of the San Andreas Fault system, is in this area. It is one of the largest in southern California and, according to the ...

The West Coast is ground zero for several fault lines due to the movement of the earth between two major tectonic plates, including the North American plate and the Pacific plate. And while much ...

Cascadia's four segments make it more dangerous than other major fault lines because they have different rock and sediment, ...

The last earthquake along the fault greater than 5.2 was a magnitude 6 earthquake in 1910, according to the SCEDC. That makes the recent event the largest along the fault in over 100 years.