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

Southern California typically experiences more than 10,000 earthquakes per year, according to the United States Geological ...

Fault zones are often wide, branching networks rather than narrow lines, requiring a shift to 3D models for better earthquake ...

A magnitude 5.2 earthquake jolted southern California Monday morning near San Diego felt as far away as Mexico, according to ...

Alameda County, Mendocino County, San Bernadino County, and San Mateo County are all featured in the top 10, at fifth, ...

Also well known in L.A. is the Newport-Inglewood fault, which unleashed the 1933 Long Beach earthquake — the deadliest temblor in Southern California’s modern history. The large earthquake ...

In this type of fault, the block of rock above the fault plane, known as the hanging wall, moves downward relative to the block below, called the footwall. Normal faults are typically found at ...