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The tsunami caused by the Chicxulub asteroid is global



Mexico City. The impact of the Chicxulub asteroid, which killed dinosaurs 66 million years ago, produced a tsunami that spread throughout the world, according to the first global simulation of this event.

The scientists led by Molly Range from the University of Michigan Ann Arbor used two models for their simulation. One for the initial impact of asteroids with a diameter of 14 kilometers in shallow water and others focused on the result of the spread of water that was moved throughout the ancient oceans.

According to the simulation produced, the first effect of the asteroid impact is a tsunami wave as high as around 1,500 meters. This study was presented at the autumn meeting of the American Geophysical Union.

The impact of the tsunami spread rapidly from the Gulf of Mexico to the Atlantic and through the sea lanes of Central America to the Pacific in the first 24 hours. Reflection and refraction of waves creates a more complex tsunami propagation pattern 48 hours after impact, with a height of 14 meters.

Flow rates exceed 20 centimeters per second along the coast of the whole world and can change sediments more than 6 thousand kilometers from the origin of the impact.

Compared to the Indian Ocean tsunami on December 26, 2004, one of the biggest tsunamis in modern records, the impact of the tsunami was around 2,000 600 times more energetic.

This model shows that the asteroid impact not only has a significant effect on the global atmosphere and biosphere, but also creates such a tsunami that its effects are felt in most global oceans.


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