Stretching like a colossal spine along western South America, the Andes stand as the world's longest mountain range. It spans ...

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

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

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

Researchers named the spring "Pythia’s Oasis" for Ancient Greece's Pythia, an oracle who sat in a temple above a crack in the ...

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

Geosphere, demonstrating the first evidence that the two faults have interacted repeatedly over thousands of years. The ...

The Cascadia Subduction Zone, stretching from Northern California to British Columbia, is capable of producing a magnitude-9 earthquake and a tsunami that could devastate the Pacific Northwest.

A subduction zone near Cascadia is unraveling piece by piece. The process offers a rare glimpse into how tectonic plates die ...

The disaster caused by a predicted large earthquake in the Pacific Northwest could be compounded by shaking along the San Andreas fault in California, scientists warned.

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

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