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Aracar volcano

stratovolcano 6082 m / 19,954 feet
Northern Chile, Bolivia and Argentina, South America, -24.25°S / -67.77°W
Current status: normal or dormant (1 out of 5) | Reports
Aracar volcano books
Typical eruption style: explosive
Aracar volcano eruptions: 1993 (?)
TimeMag. / DepthDistanceLocation
Wed, 20 Mar 2019
Wed, 20 Mar 11:19 UTCM 3.6 / 226 km27 kmAntofagasta, Chile
Fri, 15 Mar 2019
Fri, 15 Mar 17:40 UTCM 4.1 / 214 km68 kmSalta, Argentina
Fri, 15 Mar 17:10 UTCM 3.6 / 192 km27 kmSalta, Argentina
Wed, 13 Mar 2019
Wed, 13 Mar 20:00 UTCM 3.7 / 206.9 km32 km82 km al SE de Socaire (Argentina)
Mon, 11 Mar 2019
Mon, 11 Mar 16:51 UTCM 3.5 / 232 km31 kmSalta, Argentina
View all recent quakes
Aracar volcano is a probably still active stratovolcano in NW Argentina close to the border with Chile. The volcano has a well-preserved 1.5 km wide summit crater with a small crater lake and steep eroded flanks. It is not known whether there has been activity in the Holocene (past 12,000 years).

Background:

The volcano was constructed during 3 eruptive cycles dating back to the Pliocene. The andesitic stratovolcano overlies dacitic lava domes. Lava flows are found at the base of the volcano below 4500 m elevation are relatively well preserved, but there are no lava flows on the upper flanks, which are often an indication of youthful activity. (Source: GVP volcano information)

Possible eruption in 1993
There were reports about ash columns from the summit on 28 March 1993, but it is not known whether these were rockfall dust or eruption plumes.


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