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7,500 years ago, the Pacific floor collapsed. Today, robot subs have found proof of at least ten megaquakes. And researchers warn: the plates are still locked and building pressure right now. The fault is called the Cascadia Subduction Zone, and it stretches from Northern California to Canada. It can produce a magnitude 9.0 earthquake, drop the coastline by more than 2 meters in minutes, and send a tsunami racing toward the US coast at 800 to 965 kilometers per hour. ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- Our Social Media: ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.