A newly identified link between two notorious geologic zones suggests a major earthquake at one site could trigger another ...

These are two very different fault systems, but the sediment record suggests that in the past, at least three San Andreas ...

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

The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

Although Californians are relatively familiar with the San Andreas Fault, the Cascadia Subduction Zone is in many ways more ...

With the Great ShakeOut earthquake drill approaching, new research suggests a potential link between two major fault lines ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

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

Thursday’s 3.1 magnitude earthquake was the latest of five notable aftershocks to hit Berkeley since a 4.3 magnitude ...

A megaquake in the Pacific Northwest could trigger a large earthquake along California's San Andreas Fault, creating an ...

A retired scientist with the USGS worries about the impact the government shutdown is having on the agency's earthquake ...