A large volcanic crater over in diameter tops the volcano. This probably represents an ancient meteorite crater, beneath the town. Shoemaker would train astronauts during field trips to Meteor Crater and Sunset Crater near Flagstaff. Lateral explosions excavated a notch in the southeast crater wall. A lunar crater is named after him. Manicouagan Reservoir lies within the remnant of an ancient eroded impact crater (astrobleme). Anatahan began erupting from its east crater on May 10, 2003. The lunar crater Jenner is named in his honour. Mayon is a classic stratovolcano with a small central summit crater. Pyroclasts were ejected and the snow surrounding the crater melted. The clouds were shot from the Haleakala Crater on Maui. Aitken basin as the largest impact crater in the Solar System. It lies to the east of the prominent crater Langrenus. The Vredefort crater is the largest verified impact crater on Earth. It would have been larger than the Sudbury Basin and the Chicxulub crater.