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

A mega-earthquake might be triggered by two volatile faults, striking in unison, with one quake nudging the other into ...

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

A major earthquake hasn't struck any of California's biggest cities in more than three decades, but experts and officials say the so-called "Big One" is a matter of when, not if. And the risk is far ...

They are two of the West Coast's most destructive generators of huge quakes: the San Andreas fault and the Cascadia ...

New research offers the theory that the San Andreas fault and the Cascadia subduction zone could produce devastating back-to-back earthquake disasters.

Since Monday evening, a cluster of at least 10 earthquakes – ranging from magnitudes of 3.1 to 5.8 on the Richter scale – have struck off the coast of Oregon. Alarms were raised, as this zone is home ...

A new geological study suggests that a major earthquake in the Cascadia Subduction Zone could set off simultaneous shaking ...

Amidst the tsunami-prone Cascadia Subduction Zone lies Pythia’s Oasis, a hole in the ocean floor, which serves as a ...

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 ...