The Cascadia Subduction Zone, stretching from Northern California to Vancouver Island, could trigger a catastrophic ...

Scientists link a magnitude 6.5 earthquake that shook Humboldt Bay, California, 71 years ago to the "locked" Cascadia ...

The Cascadia Subduction Zone along the Pacific Northwest coast looms large in the scientific and public minds, as it has the ...

What lies beneath Fickle Hill in northern California? Maybe the answer to an earthquake mystery that has puzzled ...

A magnitude 2.9 earthquake hit Skagit County just after 1 a.m., shaking areas from Sedro-Woolley to Oak Harbor.

When an earthquake rips along the Cascadia Subduction Zone fault, much of the U.S. West Coast could shake violently for five minutes, and tsunami waves as tall as 100 feet could barrel toward shore.

An earthquake in the Cascadia Subduction Zone with a magnitude greater than 8.0 could cause a sudden subsidence — the sinking of land — that, paired with rising sea levels, would enlarge ...

The last time this Cascadia subduction zone shook off a major earthquake was in 1700. Since then, the coastline has been rising by 0.04 to 0.12 inch (1 to 3 millimeters) a year, slightly outpacing ...

The Pacific Northwest is being taken for a ride. At the Cascadia Subduction Zone—a 700-mile fault that runs all the way from California to British Columbia—two giant tectonic plates are locked ...