New evidence suggests current estimates about tsunami size and how quickly waves make it to shore may be too high and too ...

There are places where splay faults are present along the Cascadia Subduction Zone, and for those spots, ... a splay fault could send a tsunami hurtling toward the coast within 10 or so minutes.

A 700-mile fault could snap by 2075, sinking parts of Portland, Seattle & SF. The Cascadia megaquake may trigger a 100-ft ...

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.

The Cascadia subduction zone could deliver the worst earthquake in North America. It runs 700 miles underwater along Pacific Northwest, from Canada to California.

PORTLAND, Ore. – A new study mapping the Cascadia Subduction Zone is giving scientists clues about the state of the fault line as the Pacific Northwest awaits a potentially catastrophic earthquake.

EUGENE, Ore. (NBC) -- 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 ...

January 26 marked the 325th anniversary since the last earthquake struck the Cascadia subduction zone. Centuries later, the ancient quake has left clues for scientists to prepare for the next one.

TACOMA — Any parent of a rambunctious youngster can tell you trouble might be afoot when things go quiet in the playroom. Two independent research initiatives indicate there is a comparable situation ...

Initial results from a four-year seafloor monitoring project of the Cascadia Subduction Zone show the 700-mile-long fault off the Northwest coast isn’t as seismically quiet as it long seemed.

It’s the 323rd anniversary of the last Cascadia Subduction Zone earthquake.We spend a fair amount of time thinking about the ‘Big One’ (and the ‘Really Big One’) in the Pacific Northwest.