The Big One Is Coming: What a Cascadia Megaquake Would Actually Do

#Earthquake #NaturalDisaster #Science Yesterday, a 5.5 magnitude earthquake struck just off the Oregon coast — and it's got seismologists watching something way bigger. This is the Cascadia Subduction Zone, the fault behind the Big One, a magnitude 9 megaquake that hasn't fully ruptured in 326 years. In this video we break down exactly what happened, why it wasn't the megaquake yet, and what a full Cascadia rupture would actually do to Portland, Seattle, and Vancouver — the shaking, the tsunami window, and the odds scientists are watching right now. Real talk, y'all: this isn't about fear-mongering, it's about knowing the real numbers behind the Pacific Northwest earthquake risk and having an actual plan before the ground ever moves. If you're into natural disasters, geology, or you just live anywhere on the West Coast, this Cascadia earthquake explainer is one you need to watch. 0:00 The quake that has scientists on edge 1:44 What the Cascadia Subduction Zone actually is 6:07 What a full magnitude 9 rupture would really look like 9:13 The tremor swarm nobody's talking about 14:22 Are you actually ready for the Big One? #Cascadia #TheBigOne #Megaquake #PacificNorthwest #Tsunami