A new scientific warning has put California’s earthquake risk in sharp focus: supershear earthquakes—rare, high-speed ...

Accidental landing of a research vessel in the San Andreas zone revealed the repeating patterns tribuldite in its core.

Down in California, the San Andreas Fault marks the boundary where the North American and Pacific plates are sliding past ...

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could cause the San Andreas fault in California to go off.

A massive Pacific Northwest earthquake could trigger a devastating second quake on California's San Andreas Fault, a new ...

Samples from the seafloor reveal evidence of several earthquakes along the West Coast’s two major fault zones happening in ...

A specific type of earthquake that can cause particularly intense shaking is more common than previously believed, some ...

A future mega-earthquake in the Pacific Northwest could lead to the “Big One” along the San Andreas fault in California—or vice versa.

San Andreas, Cascadia faults could combine to produce back-to-back earthquake disasters, new research suggests – Nation and ...

The San Joaquin fault runs along the base of the Coastals from Newman to east of Tracy. The third is the Corral Hollow fault ...

Scientists have uncovered evidence that megaquakes in the Pacific Northwest might trigger California’s San Andreas Fault. A research ship’s navigational error revealed paired sediment layers showing ...

Although Californians are relatively familiar with the San Andreas Fault, the Cascadia Subduction Zone is in many ways more dangerous. That fault, where the Juan de Fuca Plate is subsiding underneath ...