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Chacana volcano

stratovolcano 4643 m / 15,233 ft
Ecuador, -0.38°S / -78.25°W
Current status: dormant (1 out of 5)
Typical eruption style: explosive
Chacana volcano eruptions: 1773, 1760 No recent earthquakes
TimeMag. / DepthDistanceLocation
Chacana is an active stratovolcano 30 km SE of Quito, Ecuador. The volcano is one of the largest rhyolitic centers of the northern Andes and contains a large 32 km long and 24 km wide eroded caldera.
Historic activity consisted of lava flows in the 18th century.

Background:

from Smithsonian / GVP volcano information:
Chacana was constructed during three cycles of andesitic-to-rhyolitic volcanism, with major eruptions about 240,000, 180,00, and 160,000 years ago. Dacitic lava flows were erupted from caldera-floor fissures between about 30,000 and 21,000 years ago. Numerous lava domes were constructed within the caldera, which has been the source of frequent explosive eruptions throughout the Holocene as well as historical lava flows during the 18th century. The massive Antisana stratovolcano was constructed immediately to the SE.


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