The Dinosaur-Killing Asteroid Also Caused A Global Tsunami

A new study indicates the dinosaur-killing asteroid that struck Earth 66 million years ago also created a mile-high tsunami in the Gulf of Mexico that reached halfway around the planet.

After examining cores from more than 100 sites globally and building digital models of the gigantic waves, researchers discovered evidence of this massive tsunami.

This tsunami was strong enough to disturb and destroy sediments in ocean basins halfway around the world, research lead author Molly Range said in a statement.

Based on previous research, the team created a model of an asteroid 8.7 miles that was traveling at 27,000 mph (43,500 km/h), or 35 times the speed of sound, when it struck Earth.

Many lifeforms died after the asteroid hit; nonavian dinosaurs were extinct and around three-quarters of all plant and animal species were wiped out.

Many of the asteroid's negative effects are well known, such as igniting raging fires that killed animals and crushing sulfur-rich rocks, which caused lethal acid rain and extended global cooling.

Researching team analyzed 120 "border sections" or sea sediments laid down just before or after the Cretaceous mass extinction to learn more about the tsunami.

The research team also reported that these boundary portions matched the expectations of their model of wave height and travel.

Researchers even found outcrops, exposed rocky deposits - from the impact event on the north and south islands of eastern New Zealand, more than 7,500 miles from the Chicxulub crater in Mexico.

"Depending on coast geometry and rising waves, most coastal regions will be inundated and eroded," the researchers said. Any historical tsunamis pale in contrast to this global impact. "