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The asteroids that killed the dinosaurs caused a global tsunami

66 million years ago the tsunamis caused by the asteroids Chicxulub killed dinosaurs spread throughout the world, according to the first global simulation of this event.

The scientists led by Molly Range at Michigan University, Ann Arbor, used two models to simulate. One impact of the first 14-km inlet of the asteroid in deep water, and the other, extending the water generated by the displacement of water.

According to this simulation, the first effect of the asteroid impact was a tsunami of 1,500 meters. The study was presented at a meeting of the American Geophysical Summit.


The impact of the tsunami rapidly expanded 24 hours before the Gulf of Mexico to the Atlantic and Central American and Pacific ocean lanes. The waves reflects and refuses to create a more complex tsunami propagation after a 48-hour impact, with a height of 14 meters. The flow velocity exceeds 20 centimeters around the coast of the world and can change sediment from more than six thousand kilometers from the source of the impact.

On December 26, 2004, compared with the tsunami against Indian tsunamis, the impact of the tsunami was 2,600 times more energy.

This model suggests that the impact of the asteroid has not only had significant effects on the atmosphere and the biosphere, but also created a tsunami of magnitude, which was largely influenced by the ocean.

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