Scientists investigate the Cascadia Subduction Zone off the Pacific Northwest, and the potential for a catastrophic tsunami.

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 tsunami wave from an anticipated earthquake off the West Coast could reach 100 feet and permanently flood parts of the ...

The Cascadia Subduction Zone has historically produced 8.0 or larger magnitude earthquakes every 400 to 600 years, with the last striking in 1700. This suggests the 'sleeping giant' is poised for ...

"Along the Washington, Oregon, and northern California coasts, the next great Cascadia subduction zone earthquake could cause up to 2 m [6.5 feet] of sudden coastal subsidence, dramatically ...

A major West Coast earthquake along the Cascadia subduction zone could have an unexpected and destructive side-effect for shoreside communities throughout the region. Research recently published in ...

A so-called "doomsday tsunami" is likely to hit the United States in the near future, but scientists now say there is a possibility that it could happen sooner than previously thought.

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

A mega-earthquake in this region would most likely be a market-moving event. 5. North America (Cascadia) – The last mega-earthquake on this subduction zone occurred 300 years ago.

The June 7-10 exercise is called Cascadia Rising. It is named after the Cascadia Subduction Zone — a 600-mile-long fault just off the coast that runs from Northern California to British Columbia.

Southern Vancouver Island could be in the most dangerous part of the Cascadia Subduction Zone, a 1,000-kilometre-long area stretching from B.C. to California prone to earthquake activity.