America’s Most Dangerous Fault Isn’t San Andreas — And Scientists Are Watching It Closely

The San Andreas Fault gets all the attention, but the Cascadia Subduction Zone is the real threat. This 600-mile megathrust fault off the coast of Oregon, Washington, and British Columbia is capable of producing a magnitude 9.0 earthquake and a 100-foot tsunami that could devastate the entire Pacific Northwest. The last time the Cascadia fault ruptured was January 26, 1700, when it triggered a massive earthquake that drowned entire forests in saltwater and sent an orphan tsunami across the Pacific Ocean to Japan. Scientists have now confirmed over 40 major earthquakes along this fault in the last 10,000 years, and by every measure, the next one is overdue. In this documentary, we cover the incredible detective story behind the discovery of the Cascadia earthquake threat, why subduction zone earthquakes are far more dangerous than the San Andreas, what FEMA predicts will happen when the fault ruptures, and what scientists are monitoring right now. #CascadiaSubductionZone #Earthquake #SanAndreasFault #PacificNorthwest #Tsunami #MegathustEarthquake #TheReallyBigOne #GhostForests #OrphanTsunami #Seattle #Portland #Oregon #Washington #FEMA #RingOfFire #NaturalDisaster #Geology #Science #SubductionZone #EarthquakePreparedness