A 9.2 megathrust earthquake on the Cascadia Subduction Zone would not just rattle the Pacific Northwest, it would redraw the ...

A massive earthquake off the Pacific Northwest coast is not a distant abstraction but a well-defined geological threat. Along ...

A 6.0 magnitude earthquake strikes off Oregon coast, triggering tsunami alert and concerns of aftershocks, as the Cascadia ...

Researchers have discovered evidence of “partial synchronization” of two of the world’s most famous fault lines—the northern San Andreas Fault and Cascadia Subduction Zone. The relationship between ...

The Carrizo Plain in eastern San Luis Obispo County contains the most strikingly graphic portion of the San Andreas Fault. Sediment cores recovered from the Pacific seafloor suggest that megathrust ...

The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West Coast could cause more damage than previously estimated if it sets off quakes ...

CORVALLIS, Ore. – Two fault systems on North America’s West Coast – the Cascadia subduction zone and the San Andreas fault – may be synchronized, with earthquakes on one fault potentially triggering ...

The West Coast is years overdue for the next big earthquake. When the colossal tremor eventually strikes, seismologists expect high-rises and other buildings to collapse, massive fires that can burn ...

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 ...

A "Big One" on the Cascadia subduction zone in the Pacific Northwest might trigger a similarly serious earthquake on California's San Andreas Fault, new research suggests. The findings are based on ...

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 ...