Cascadia Subduction Zone News

Officials: A Dam in Oregon Could Fail in a Large Earthquake

SALEM, Ore. (AP) — The U.S. Army Corps of Engineers has determined that a large earthquake — which is expected to occur again in the Pacific Northwest sooner or later — could cause the spillway gates of a dam in …

Simulations Depict Tsunami Effects in Washington State

SEATTLE — State authorities have released new simulations that show how a powerful tsunami could overwhelm Washington state’s coastal and shoreline communities. The Department of Natural Resources says there are some locations around the state where residents would have very …

Oregon Wrestles With Building Facilities in Tsunami Zones

SALEM, Ore. — Experts say the big one is coming to the Pacific Northwest: a massive earthquake that will cause buildings and bridges to collapse and unleash a tsunami that will devastate the coast. But, doubling down on its decision …

Oregon’s New Playbook Addresses Earthquake Response

Oregon has a new playbook for preparing and responding to a major earthquake that dictates what should be tackled over time versus a list of tasks to get done. The playbook provides a two-week blueprint for the state’s response and …

Study Says Big Quake Poses Lower Risk for Eugene Area

New research from the University of Oregon delivers what may be a sliver of good news – if it can be called that – for the Eugene-Springfield area as the Pacific Northwest prepares for what scientists say will be the …

Oregon’s North Coast Planners Question Development in Tsunami Zone

This fall a child care center moved into a building in Astoria that Oregon State Police had left because it was in the tsunami inundation zone. This summer, Patrick Corcoran, a coastal hazards specialist with Oregon State University’s Sea Grant …

Study Finds Walking Faster Key to Surviving a Tsunami

About 5,500 more people could survive a major tsunami hitting the Pacific Northwest if they just walk a little faster to higher ground after roads are knocked out, a new study shows. The report published Monday in the Proceedings of …

M6.6 Quake Strikes off the Coast of Vancouver Island: AIR

According to catastrophe modeling firm AIR Worldwide, a powerful M6.6 earthquake struck off the coast of Canada’s Vancouver Island at a depth of 7.1 miles. No injuries have been reported, and there is no tsunami warning in effect, according to …

Scientists Defining Cascadia Subduction Zone

Scientists are just back from a monthlong research cruise in the Pacific Ocean off Washington state, where they were trying to find the stickiest point on a section of the Cascadia Subduction Zone, the huge undersea fault that breaks loose …