By creating an account, you acknowledge that PBS may share your information with our member stations and our respective service providers, and that you have read and understand the Privacy Policy and Terms of Use.
Become a WYES member to enjoy
WYES
Passport
Get extended access to 1600+ episodes, binge watch your favorite shows, and stream anytime - online
or in the PBS app.
The Cascadia Earthquake: America’s Worst Disaster?
Season 1 Episode 7 | 10m 43s
| Video has closed captioning.
The Cascadia Subduction Zone is a sleeping monster lurking just off the Northwest coast of the United States. It extends 600 miles between Northern California and Vancouver B.C. and experiences a massive megathrust earthquake every 250 years on average. The last one happened 321 years ago and scientists say there is a 30% chance we’ll see another in the next 50 years.
