Northern California’s coast keeps you on alert, even on quiet days. Offshore, three tectonic plates meet near Humboldt County ...

A hidden shard of ancient crust has been detected where California’s San Andreas system collides with the Cascadia subduction ...

A megaquake in the Pacific Northwest could trigger a large earthquake along California's San Andreas Fault, creating an unprecedented catastrophe up and down the Pacific Coast, a new study has found.

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. “It would be a very ...

Add Yahoo as a preferred source to see more of our stories on Google. Earthquake with tremor graphic A newly identified link between two notorious geologic zones suggests a major earthquake at one ...

Julia Shumway / Oregon Capital Chronicle The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West Coast could cause more damage than ...

In 1954, a powerful earthquake shook Northern California near Humboldt Bay, baffling scientists for decades. Most quakes in the region come from the Gorda Plate, but this one didn’t fit the pattern.

PORTLAND, Ore. (KOIN) – Oregon Governor Tina Kotek signed an executive order on Monday aiming to help the state prepare for earthquakes. Executive Order 25-22 directs Oregon’s Department of ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the Cascadia subduction zone offshore of California’s North Coast, Oregon, ...