Imagine an immense wall of water crashing into the skyline of New York City, the iconic bridges of London, and the sprawling cityscape of Los Angeles. The unimaginable chaos, destruction and sheer power of nature unleashed upon these bustling urban centers. While this catastrophic scenario hasn't played out in reality for these great cities, the reality is, tsunamis of colossal proportions do exist. 00:00 The True Scale of Tsunamis 01:16 Tangshan Tsunamo 01:59 Cascadia Tsunami 03:17 Indian Ocean Tsunami 04:25 Tohoku Tsunami 05:45 Vajont Dam Tsunami 07:07 Lituya Bay Tsunami Questions or concerns? Contact us at https://underknown.com/contact/ Interested in sponsoring our episodes or collaborating? Email us: contact@underknown.com Produced by the makers of What If. Check out our other channels: What If - https://bit.ly/youtube-What-If Aperture: https://bit.ly/aperture-show Your Body On: https://bit.ly/your-body-on-show Whether it’s an earthquake, mudslide or shark attack, survive whatever awaits you. How To Survive shows how to endure life-threatening moments with science and survivor stories. Note: This video is not intended to be a substitute for professional advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have seen on this channel. If you think you may have an emergency, call your doctor, the ambulance or the police immediately. Underknown does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned in this video. Reliance on any information provided by Underknown is solely at your own risk. Made possible with the support of Ontario Creates. An Underknown show: https://underknown.com Contact us at https://underknown.com/contact/ #howtosurvive #tsunami #survival