Approximately how big is the Chicxulub crater in Mexico?

Discovered during the late 1970s by Antonio Camargo and Glen Penfield, the Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located offshore near the communities of Chicxulub Puerto and Chicxulub Pueblo, after which the crater is named.

The crater is estimated to be 150 kilometers (93 miles) in diameter and 20 kilometers (12 miles) in depth. It is the second largest confirmed impact structure on Earth, and the only one whose peak ring is intact and directly accessible for scientific research.

The Chicxulub crater was formed when a large asteroid, about 10 kilometers (6.2 miles) in diameter, struck the Earth. The date of the impact coincides precisely with the Cretaceous–Paleogene boundary (commonly known as the ‘K–Pg boundary’), slightly more than 66 million years ago.