volcanic crater
circular depression in the ground caused by volcanic activity
AI overview
A volcanic crater is a bowl-shaped depression in the ground formed when a volcano erupts and ejects material, or when the ground collapses after magma beneath the surface drains away. Craters are important to scientists and geologists because they provide clues about volcanic activity and help us understand how volcanoes work and where they might erupt in the future.
AI-generated from the Wikipedia summary — may contain errors.
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Craters on Nemrut (volcano) Craters on Mount Cameroon Queen's Crater (Kawah Ratu), biggest crater of Mount Tangkuban Parahu, Bandung, West Java, Indonesia
A volcanic crater is an approximately circular depression in the ground caused by volcanic activity. It is typically a bowl-shaped feature containing one or more vents. During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a conduit, until they reach the crater's vent, from where the gases escape into the atmosphere and the magma is erupted as lava. A volcanic crater can be of large dimensions and sometimes of great depth. During certain types of explosive eruptions, a volcano's magma chamber may empty enough for an area above it to subside, forming a type of larger depression known as a caldera.