The Cascadia Subduction Zone has been quiet for more than three centuries, but that silence is exactly what alarms the scientists who study it. Along roughly 600 miles of fault off the Pacific ...

Add Yahoo as a preferred source to see more of our stories on Google. A megathrust earthquake is coming for the Pacific Northwest. But new imaging of undersea faults and fractures has given scientists ...

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 ...

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 threat of a 9.0-magnitude earthquake along the Cascadia Subduction Zone has hung over the Pacific Northwest for decades. Seismologists and emergency managers say “The Big One” could be one of the ...

PORTLAND, Ore. (KOIN) – The Cascadia Subduction Zone is “unusually quiet,” for a megathrust fault, making it more difficult for scientists to understand its behavior and structure. With help from ...

Seismologists tracking thousands of tiny tremors off California's Humboldt County coast have discovered the region's geology is far more complex than current models suggest. The Mendocino Triple ...

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, ...

If you’ve been following the Mercury’s occasional stories about our region’s coming earthquake disaster, then you will no doubt know the term Cascadia subduction zone. If not, here’s an oversimplified ...