Caldera del Atuel is a
caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...
in
Argentina
Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...
. It is the source of the
Rio Atuel and has dimensions of .
Cerro Sosneado is a volcano (best volume estimate ) located outside of the Atuel caldera, Volcan Overo (best volume estimate ) and Las Lágrimas complex are located within the caldera. Holocene activity may have formed the cinder cones on the northeastern side of the caldera. After the
2010 Maule earthquake, the caldera was one of the volcanic centres that underwent
subsidence
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope mov ...
, along with secondary earthquake activity.
See also
*
List of volcanoes in Argentina
References
*
Mountains of Argentina
Volcanoes of Mendoza Province
Calderas of Argentina
Polygenetic volcanoes
Five-thousanders of the Andes
Quaternary calderas
{{MendozaAR-geo-stub