The impact of the Chiksulub asteroid, which killed the dinosaurs 66 million years ago, has created a tsunami spreading around the world, according to the first global simulation of this event.
Scientists led by Molly Range at the University of Michigan Ann Arbor used two models for their simulation. One was about the initial influence of asteroid with a diameter of 14 kilometers in shallow water, and the other focused on the subsequent expansion of the water that had flown through the ancient ocean.
According to the simulation, the first effect of the asteroid impact would be a wave of tsunami with a height of about 1,500 meters. The study was presented at the autumn meeting of the American Geophysical Union.
The impact of the tsunami is rapidly spreading from the Gulf of Mexico to the Atlantic and across Central America's sea strips to the Pacific in the first 24 hours. The flare and reflection of the waves create a more complex tsunami dissemination model 48 hours after the impact, with a height of 14 meters. The flow velocity exceeded 20 centimeters per second along the coasts of the world and could alter the sediments more than 6,000 kilometers from the origin of the impact.
Compared to the Indian Ocean Ocean Tsunami on December 26, 2004, one of the largest tsunamis in the modern record, the tsunami of impacts was approximately 2,600 times more energetic.
This model suggests that the impact of the asteroid not only had significant effects on the global atmosphere and biosphere but also created a tsunami of such magnitude that its effect was felt in much of the global ocean.