caldera(redirected from Caldera collapse)
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cal·de·ra(kăl-dâr′ə, -dîr′ə, käl-)
A large crater formed by volcanic explosion or by collapse of a volcanic cone.
[Spanish, cauldron, caldera, from Late Latin caldāria; see cauldron.]
(Physical Geography) a large basin-shaped crater at the top of a volcano, formed by the collapse or explosion of the cone. See cirque
[C19: from Spanish Caldera (literally: cauldron), name of a crater in the Canary Islands]
cal•de•ra(kælˈdɛr ə, kɔl-)
n., pl. -ras.
a large, basinlike depression resulting from the explosion or collapse of the center of a volcano.
[1860–65; < Sp Caldera literally, cauldron < Late Latin caldāria]