For Caldera we have terms and definitions in 7 topics. The topics are Earth Science, Geologic, Natural Hazards, Physical Geography, Planetary Science, Science and Volcano.

Caldera (Earth Science)

The Spanish word for cauldron, a basin-shaped volcanic depression; by definition, at least a mile in diameter. Such large depressions are typically formed by the subsidence of volcanoes. Crater Lake occupies the best-known caldera in the Cascades.

Caldera (Geologic)

Large, generally circular, fault-bounded depression caused by the withdrawal of magma from below a volcano or volcanoes. Commonly, the magma erupts explosively as from a giant volcano and, falling back to Earth as volcanic ash, fills the caldera so formed.

Caldera (Natural Hazards)

A large volcanic crater, that usually covers an area greater than the vents within it.

Caldera (Physical Geography)

A large circular depression in a volcano.

Caldera (Planetary Science)

A large, basin-shaped volcanic depression caused by collapse.

Caldera (Science)

The crater or bowl-shaped depression formed at the summit of a volcano or by the collapse of a magma chamber.

Caldera (Volcano)

A caldera is a large, usually circular depression at the summit of a volcano formed when magma is withdrawn or erupted from a shallow underground magma reservoir. The removal of large volumes of magma may result in loss of structural support for the overlying rock, thereby leading to collapse of the ground and formation of a large depression. Calderas are different from craters, which are smaller, circular depressions created primarily by explosive excavation of rock during eruptions. (USGS/VHP)

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