Lascar (volcano) 3.28

Lascar is a stratovolcano within the Central Volcanic Zone of the Andes, a volcanic arc that spans the countries of Peru, Bolivia, Argentina and Chile. It is the most active volcano of the region, with records of eruptions going back to 1848. It is constructed from two separate cones with six or five summit craters. The westernmost crater of the eastern cone is presently active. Volcanic activity is characterized by constant release of volcanic gas and occasional Vulcanian eruptions.Lascar has been active since at least 56,000 or 220,000 years ago. The first known activity occurred at the eastern cone, before shifting to the western cone and back again. The magma supplied to the volcano ultimately comes from the subduction of the Nazca Plate beneath the South America Plate. A number of other volcanoes are found in the neighbourhood, such as Aguas Calientes and Cordon de Puntas Negras and the giant La Pacana caldera.