Deep beneath Oregon and the Pacific Northwest, the Juan de Fuca tectonic plate is slowly being forced beneath North America, creating one of the most dangerous earthquake zones in the United States.

Scientists are warning that a massive earthquake along the 620-mile Cascadia fault could devastate America's Pacific ...

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

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

Two mild earthquakes struck off the Oregon coast Sunday. Experts warn of a 40% chance of a major magnitude 9.0 quake in the ...

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 ...

The Cascadia subduction zone and northern San Andreas fault may sometimes rupture in rapid succession, according to evidence preserved in 3,100 years of ocean sediments. Researchers identified unusual ...