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

The quake serves as a reminder of the long-term seismic risks posed by the Cascadia Subduction Zone, a less-publicized but potentially catastrophic fault system that extends from Northern ...

The new bridge will be earthquake-ready, so crews are digging a 10-foot-wide, 125-foot-deep hole to see how concrete supports react during a simulated seismic event.

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 ...

Why do we need a new I-5 bridge? "Pressure is mounting for another Cascadia Subduction Zone megathrust. At risk are the two ...

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 ...

Since 2016, talk of Multnomah County’s Burnside Bridge rebuild has all been conceptual. Last month, the seismic upgrades ...

Oregon's OEM advises residents on earthquake preparedness, encouraging safety measures like securing homes and practicing ...

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.