The phrase "enormous crater" refers to a very large hole or depression in the ground that is caused by an explosion, impact, or collapse. It suggests that the crater is of a significant size, much bigger than a regular hole or dent. Full definition
If the Obama administration made way for every sincere religious claim to be relieved of the HHS mandate, the legal landscape would be pocked with enormous craters where the routine administration of the law had been exploded. (firstthings.com)
Pockmarked Mimas, whose enormous crater has earned it the nickname «the Death Star moon,» is, at just under 250 miles in diameter, the smallest spherical object in the solar system. (discovermagazine.com)
An object that size would penetrate the atmosphere and make an enormous crater and do considerable damage. (discovermagazine.com)