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Callaqui volcano (Chile) activity update: possible ash eruption on 2 January
mercredi, janv. 04, 2012
Buenos Aires VAAC reported a pilot observing an ash plume from Callaqui at 3 km (10,000 ft) a.s.l. on 2 January. No ash could be detected on satellite... [details]
Callaqui volcano (Chile) eruption updates: eruption in near future?
jeudi, févr. 21, 2008
Scientists from the Universidad de Concepción will install instruments to monitor Callaqui volcano. Local residents reported feeling earthquakes and h... [details]

Callaqui volcan

stratovolcan 3164 m / 10,380 ft
Argentine/Chili (centre), South America, -37.92°S / -71.45°W
Condition actuelle: en sommeil (1 sur 5)
Dernière mise à jour: 4 janv. 2012 (vigorous fumarolic activity)
Style éruptif tipique: explosive (phreatic), effusive
Eruptions du volcan Callaqui : 1980, 1937 (?), 1864 (?), 1751
Ice-capped Callaqui volcano is an elongated basaltic-andesite stratovolcano in central Chile Volcano. It has had a few small explosive eruptions in historic time, and it is known for its intense fumarolic activity.

Introduction:

Callaqui stratovolcano has a profile of an overturned canoe, because it has been constructed along an 11-km-long, SW-NE fissure above a 1.2-0.3 million year old Pleistocene edifice.
Callaqui volcano contains well-preserved volcanic cones and lava flows, which have traveled up to 14 km. Small craters 100-500 m in diameter are primarily found along a fissure extending down the SW flank.
Intense solfataric activity occurs at the southern part of the summit; in 1966 and 1978, red glow was observed in fumarolic areas. Periods of intense fumarolic activity have dominated at Callaqui, and few historical eruptions are known. An explosive eruption was reported in 1751, there were uncertain accounts of eruptions in 1864 and 1937, and a small phreatic ash emission was noted in 1980.