A schematic cross section of the Cascadia Subduction Zone shows the ocean floor plate (light gray) moving under the North American continental plate, along with other features. Credit: U.S ...

Jan. 26, 2025, marks 325 years since the last great earthquake on the Cascadia subduction zone. It’s a time to reflect on what we’ve learned about this largest fault system in the lower 48 ...

A 700-mile fault could snap by 2075, sinking parts of Portland, Seattle & SF. The Cascadia megaquake may trigger a 100-ft ...

WASHINGTON, USA — A "swarm" of small earthquakes near the summit of Mount Rainier Tuesday is no cause for concern, according ...

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 ...

“The Cascadia Subduction Zone is so large if it unzipped from one end to the other, ... but historical and geological evidence indicate one will happen in the future. Stay Connected.

US Geological Survey Cascadia Subduction Zone off the Pacific Northwest coast. By KTVZ News Partners. Published September 8, 2023 10:51 pm ...

Two small earthquakes struck the South Bay on Tuesday. The quakes hit less than two hours from each other. LOS ALTOS, Calif. ...

"Along the Washington, Oregon, and northern California coasts, the next great Cascadia subduction zone earthquake could cause up to 2 m [6.5 feet] of sudden coastal subsidence, dramatically ...

University of WashingtonThe Cascadia Subduction Zone (CSZ) is a massive fault line stretching from Vancouver Island to Northern California—and it’s the source of the vast majority of ...

Subduction zones, where one tectonic plate dives underneath another, drive the world’s most devastating earthquakes and tsunamis. How do these danger zones come to be? A study in Geology presents ...