Cascadia earthquake could trigger seismic activity on San Andreas Fault, OSU study suggests
Update: 2025-10-14
Description
The threat of a 9.0-magnitude earthquake along the Cascadia Subduction Zone has hung over the Pacific Northwest for decades. Seismologists and emergency managers say “The Big One” could be one of the worst natural disasters in the region’s history, but it may not be the worst-case scenario. New research from Oregon State University suggests the Cascadia Subduction Zone may be linked to the San Andreas Fault in California, with seismic activity on one triggering corresponding activity on the other.
Chris Goldfinger is a professor emeritus at OSU and the study’s lead author. He joins us with more details on what the findings could mean for our region.
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