The Cascadia Subduction Zone is capable of generating "megathrust" earthquakes with magnitudes of 9.0 or higher. Such an event, which last occurred over 300 years ago, could trigger a tsunami ...

if and when a major Cascadia quake strikes, there won’t be time for an official warning for high-risk coastal areas along the subduction zone. “For an event that strong, the earthquake is your ...

Yet, the biggest or mega earthquake threat is from the Cascadia Subduction Zone about 100 miles off the coast. This subduction zone is quite similar to the Sumatra earthquake region. The last ...

Although the earthquake rattled near the Cascadia Subduction Zone, which is considered one of the biggest geohazards in the U.S., an expert said it did not raise the risk of an immediate megaquake.

The Triple Junction is also the point that the Northwest’s northern Cascadia subduction zone and the southern San Andreas Fault system meet. Thursday’s earthquakes are occurring in the ...

"the big one" — a magnitude 8.0 or higher earthquake — is imminent from the Cascadia Subduction Zone off the coast. Experts say there is a 1-in-3 chance that a magnitude 8.0 or higher Cascadia ...

(KATU) — The Oregon Department of Emergency Management (ODEM) is urging tsunami preparedness after Thursday’s earthquake ... generated from the Cascadia subduction zone, but we do get tsunami ...

The fault zone responsible for Thursday's 7.0 magnitude earthquake off the coast of ... In contrast, the Cascadia Subduction Zone, which extends from northern California to southern British ...

(KPTV) - An earthquake off the coast of northern ... of Florence (not north/central coast). This was NOT on Cascadia Subduction Zone. Quake was about 60 miles west of Eureka, CA pic.twitter.com ...