Seismologists Discover Hidden Faults Beneath One of the U.S.'s Biggest Earthquake Hotspots ...

In the Pacific Northwest, big faults like the Cascadian subduction zone located offshore, get a lot of attention. But big ...

The model also proved the theorized existence of the Pioneer fragment, a remnant of the ancient Farrallon plate that used to traverse the California coastline that has not all but disappeared. This ...

A newly discovered fault complexity beneath America's most active earthquake zone raises the possibility that a major seismic ...

A newly discovered fault complexity beneath America's most active earthquake zone raises the possibility that a major seismic ...

Even long-lived subduction zones eventually die, and scientists believe they are witnessing the slow death of one in the northern end of the Cascadia subduction zone. A new study using seismic data ...

For the first time, scientists have seen a subduction zone actively breaking apart beneath the Pacific Northwest. Seismic data show the oceanic plate tearing into fragments, forming microplates in a ...

PORTLAND, Ore. — Tomorrow marks the International Shakeout, when millions of people around the world will hold earthquake drills. In Oregon, the event coincides with a major discovery by local ...

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 ...

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 ...