The asteroid impact that wiped out the dinosaurs triggered waves 30,000 times stronger than the 2004 Indian Ocean tsunami, researchers say.
Waves up to a mile high swept across the planet, drowning everything.
Scientists have searched thousands of kilometers of seabed for evidence of disturbed and eroded sediments.
And they developed their theory based on what they found at more than 100 sites worldwide and computer simulations.
An asteroid eight miles wide slammed into the Gulf of Mexico 66 million years ago at 27,000 miles per hour.
Its initial energy was up to 30,000 times greater than that of the 2004 Boxing Day tsunami, which killed more than 230,000 people.
Molly Range of the University of Michigan, USA, said: “This tsunami was powerful enough to disturb and erode sediments in ocean basins halfway around the world, leaving either a gap in the sediment record or a jumble of older sediments.
“Depending on the geometry of the coast and the waves, most of the coastal regions would be partially submerged and eroded.
“Any historically documented tsunami pales in comparison to such global impacts.”
https://www.thesun.ie/tech/9514567/asteroid-strike-dinosaurs-powerful-tsunami/ An asteroid impact that wiped out dinosaurs unleashed waves 30,000 times stronger than the 2004 tsunami