Tsunamis 101 | National Geographic
2:43
YouTubeNational Geographic
Tsunamis 101 | National Geographic
Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag the debris out to sea. This video shows what causes tsunamis and the importance of evacuating any area under a tsunami alert. Subscribe: https://on.natgeo.com/4p5A0D6 Get More 101 Videos ...
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Surveillance footage captured shaking across cities in northeast Japan late Monday night, Dec. 8, 2025, after a magnitude 7.6 earthquake struck offshore. Tsunami warnings were issued for Hokkaido, Aomori, and Iwate, with waves up to three metres (10 feet) possible along the coast. Authorities reported initial tsunamis of 40 cm (16 inches) at Aomori’s Mutsu Ogawara and Hokkaido’s Urakawa ports, urging residents to evacuate as a precaution. Courtesy: NNN / Japan via Reuters | GMA News
3:48
Surveillance footage captured shaking across cities in northeast Japan late Monday night, Dec. 8, 2025, after a magnitude 7.6 earthquake struck offshore. Tsunami warnings were issued for Hokkaido, Aomori, and Iwate, with waves up to three metres (10 feet) possible along the coast. Authorities reported initial tsunamis of 40 cm (16 inches) at Aomori’s Mutsu Ogawara and Hokkaido’s Urakawa ports, urging residents to evacuate as a precaution. Courtesy: NNN / Japan via Reuters | GMA News
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