GEOLOGY

Detailed explanation-1: -Craters are commonly found at the summit of volcanic edifices, but they may form above satellite (flank) vents of composite and shield volcanoes. Craters are landscape features that form during eruptions. They are formed by blasts or other explosive eruptive phenomena, including phreatic and phreatomagmatic processes.

Detailed explanation-2: -Craters are formed by the outward explosion of rocks and other materials from a volcano. Calderas are formed by the inward collapse of a volcano’s magma chamber. Craters are usually much smaller features than calderas, and calderas are sometimes considered giant craters.

Detailed explanation-3: -Not all volcanoes form craters.

Detailed explanation-4: -A caldera is a large depression formed when a volcano erupts and collapses.