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 ...

Currently, none of Portland's bridges open to vehicular traffic that span the Willamette River would survive a major Cascadia Subduction Zone earthquake, leaving the city's core potentially cut ...

Mayor McEnerny-Ogle said "Pressure is mounting for another (Cascadia Subduction Zone) megathrust," one that could take down both I-5 spans. It was 325 years ago this week when the Cascadia ...

PORTLAND, Ore. (KOIN) – January 26 marked the 325th anniversary since the last earthquake struck the Cascadia Subduction Zone. Centuries later, the ancient quake has left clues for scientists to ...

Crews are finishing up digging a 125-foot hole to install a test foundation that they'll use to test the earthquake-resistant ...

making it the only vehicular bridge over the Willamette River that could withstand the earthquake along the Cascadia Subduction Zone. Work on the test foundation will run through April ...

January 26 marked the 325th anniversary since the last earthquake struck the Cascadia Subduction Zone. Centuries later, the ancient quake has left clues for scientists to prepare for the next one.

This is called the Cascadia Subduction Zone. According to the Washington State Department of Natural Resources (DNR), earthquakes happen in Washington every day, but most are too small to be felt.

The Cascadia Region Earthquake Science Center (CRESCENT), a research project focused on the Cascadia Subduction Zone (CSZ), was established in 2023 following a $15 million grant from the National ...