The Cascadia Subduction Zone, stretching from northern California to British Columbia, is one of the most dangerous seismic hotspots in North America, capable of producing a massive 9.0 magnitude ...

For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.

Nicknamed the “Big One,” the Cascadia subduction zone earthquake would be 9.0 magnitude and inflict untold damage upon Tacoma, Pierce County.

A new study on the Cascadia fault line breaks down the flooding potential of a 9.0 earthquake, calculating the risk of where and how much land could sink in the Pacific Northwest and Northern ...

A string of earthquakes has hit Washington in recent weeks. Are they connected, and do they tell us anything about the odds of a larger quake?

A once-every-500-years earthquake in the Pacific Northwest could shake for five minutes and cause 100-foot tsunami waves. New research says that would be just the start of the horrors.

When people discuss the Big One in this region, they’re talking about an earthquake on the plate boundary between the Juan de Fuca and North American tectonic plates, said Paul Bodin, a ...

What would a 9.0 earthquake mean for the area? Big One-related research efforts made national headlines this summer, including in The Washington Post. NBC News recently reported that between the ...

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 ...

Could a monster earthquake sink a portion of Northern California? A new study calculates the risk of where and how much land could sink, but experts say there's something else closer to home that ...

A string of earthquakes has hit Washington in recent weeks. Are they connected, and do they tell us anything about the odds of a larger quake?