Devastating 9.0 Cascadia Subduction Zone earthquake hit West Coast 324 years ago – and it will happen again US Geological Survey Cascadia Subduction Zone off the Pacific Northwest coast ...

The Cascadia 9.0 earthquake could reshape coastlines, disrupt infrastructure, and pose severe risks to millions of people.

The Cascadia fault line is the focus of a new study that could devastate Northern California. But experts say there's a bigger threat to Los Angeles.

The recent Kamchatka quake ties for sixth on the all-time list. Here are the top five earthquakes by magnitude.