The impact left a 124-mile-wide crater underneath the Gulf of Mexico’s Yucatán Peninsula. And, until now, it had been assumed that the asteroid ... It also would have caused a 7.0 magnitude ...

A crater at the edge of the Yucatán peninsula in Mexico was created by a massive asteroid that hit Earth 66 million years ago At the end of the Cretaceous Period 66 million years ago, an ...

It’s thought that the huge Chicxulub crater in the Gulf of Mexico was caused by a 6 miles/10 kilometers diameter asteroid that struck Earth 66 million years ago, wiping out the dinosaurs.