On the night of January 26, 1700, the ground along the Pacific Northwest coast shook for minutes. No written account survives ...

New research warns that a magnitude 9 earthquake along the 600-mile Cascadia fault could permanently lower parts of the ...

Add Yahoo as a preferred source to see more of our stories on Google. A sign for the San Andreas Fault is seen in Parkfield (Monterey County) in 2019. The fault could rupture following a megaquake in ...

Add Yahoo as a preferred source to see more of our stories on Google. Brian Atwater, a U.S. Geological Survey scientist emeritus, shows off tsunami-deposited mud. COPALIS BEACH, WASH. — When Japan ...

Hidden off the US Western shore, beneath the Pacific Ocean, is the Cascadia Subduction Zone. This fault is capable of generating earthquakes larger than magnitude 8 that can be felt hundreds of miles ...

Scientists have found evidence that a major Cascadia earthquake could trigger a second quake on the San Andreas Fault. The discovery came from unusual sediment layers formed by underwater landslides ...

About 50 miles off the coast of Newport, warm, mineral-rich liquid spews up like a fire hose through a small hole in the Pacific Ocean floor. The fluid is believed to originate from two miles below ...

The Juan de Fuca plate beneath northern Oregon appears to be shallower than previously estimated, potentially making shaking from a future Cascadia megathrust earthquake significantly stronger.

A police car guards a section of a Los Angeles freeway cracked by the magnitude 6.7 Northridge earthquake in 1994. | Steve Starr/CORBIS/Corbis via Getty Images “The Big One,” the theoretical ...