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 ...

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 ...

California's northern temperate coastline is a beautiful and bracing geography full of peaceful natural landscapes. This ...

Scientists at Oregon State University say there's new evidence that two of the best-known earthquake fault lines on the West ...

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could ...

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 ...

When the tectonic subduction zone beneath the Pacific Northwest moves, it does so in dramatic fashion. Not only is ground shaking from a magnitude 9+ earthquake incredibly destructive, the event ...