Megatsunami - Wikipedia
A megatsunami is a very large wave created by a large, sudden displacement of material into a body of water. Megatsunamis have different features from ordinary tsunamis.
World's Biggest Tsunami | 1720 feet tall - Lituya Bay, Alaska - Geology.com
The tallest wave ever recorded was a local tsunami, triggered by an earthquake and rockfall, in Lituya Bay, Alaska on July 9, 1958. The wave crashed against the opposite shoreline and ran upslope to an elevation of 1720 feet, removing trees and vegetation the entire way.
Greenland: A landslide triggered a mega-tsunami. Then came
2024年9月13日 · It started with a melting glacier that set off a huge landslide, which triggered a 650-foot high mega-tsunami in Greenland last September. Then came something inexplicable: a mysterious vibration...
A tsunami in a remote fjord rang Earth like a bell for 9 days
2024年9月12日 · The seismic waves continued to radiate worldwide for 9 days, ringing Earth like a giant bell. Now, scientists have tracked these mysterious signals to their source—a colossal landslide in a remote Greenland fjord that sparked tsunami waves up to 200 meters tall, the team reports today in Science.
The Biggest Tsunamis Ever Recorded - Mental Floss
2023年6月7日 · The biggest tsunami ever recorded reached 1720 feet high—which is taller than the Willis Tower in Chicago.
650-foot tsunami in Greenland made waves for days, scientists find
2024年9月12日 · A 650-foot tsunami in Greenland was the result of melting glacial ice that caused a landslide. The waves it created bounced back and forth for nine days.
What is a tsunami? - NOAA's National Ocean Service
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. They speed along as fast as jet planes. As they near land, these waves rear up to great heights and can drown whole islands.
1st mega-tsunami on record since antiquity was triggered by …
2023年4月28日 · The Tonga underwater volcanic eruption rivaled the strength of the largest U.S. nuclear bomb and produced a "mega-tsunami" nearly the height of a 30-story skyscraper, a recent study finds.
Giant tsunami monitoring, early warning and hazard assessment
2022年8月23日 · Earthquake-triggered giant tsunamis can cause catastrophic disasters to coastal populations, ecosystems and infrastructure on scales over thousands of kilometres.
Tsunamis: Facts About Killer Waves - National Geographic
2005年1月14日 · More rarely, a tsunami can be generated by a giant meteor impact with the ocean. Scientists have found traces of an asteroid-collision event that they say would have created a giant tsunami that...