One wave was 2.8 miles high.
The dinosaur-killing asteroid that slammed into Earth 66 million years ago also triggered a jumbo-size tsunami with mile-high waves in the Gulf of Mexico whose waters traveled halfway around the world, a new study finds.
The research on the mile-high tsunami, which was previously presented at the 2019 American Geophysical Union's annual meeting, was published online Tuesday in the journal AGU Advances . Range dove into the tsunami's journey immediately following the asteroid's collision. Based on earlier findings, her team modeled an asteroid that measured 8.7 miles across and was zooming 27,000 mph , or 35 times the speed of sound when it struck Earth.
The initial energy from the impact tsunami was up to 30,000 times larger than the energy released by the December 2004 Indian Ocean earthquake tsunami that killed more than 230,000 people, the researchers found. A full day after the asteroid's collision, the waves had traveled through most of the Pacific and the Atlantic, entering the Indian Ocean from both sides, and touching most of the globe's coastlines 48 hours after the strike.Tsunami's power After the impact, the tsunami radiated mostly to the east and northeast, gushing into the North Atlantic Ocean, as well as to the southwest via the Central American Seaway flowing into the South Pacific Ocean.
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