Oregon emergency officials cite about a 37% chance of a Cascadia megathrust earthquake of magnitude 7.1 or greater in the fault zone over the next 50 years. The number is a long-term scientific risk ...

On May 22, 1960, a magnitude 9.5 earthquake struck Chile, becoming the strongest earthquake ever recorded and triggering a ...

Cascadia’s rupture may jolt the San Andreas, creating the worst natural disaster in U.S. history. Here’s what you’ll learn ...

It's not a matter of if, but when. The big one, so to speak, is coming. And according to recent study from the Proceedings of the National Academy of Sciences, there's a 15% chance of a rupture in the ...

Scientists studying 3,100 years of seafloor sediments found clues that earthquakes on the Cascadia and San Andreas faults may ...

California experienced three earthquakes in an area being closely monitored for a major quake on Thursday and Friday.

Swiss Re's James Gasco says a major Cascadia earthquake wouldn't just hit the Port of Vancouver – it could take out the ...