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Olca-Paruma volcano

stratovolcanoes 5407 m / 17,739 ft
Northern Chile, Bolivia and Argentina, South America, -20.93°S / -68.48°W
Current status: normal or dormant (1 out of 5) | Reports
Olca-Paruma volcano books
Typical eruption style: explosive
Olca-Paruma volcano eruptions: 1865-67
TimeMag. / DepthDistanceLocation
Sat, 23 Mar 2019
Sat, 23 Mar 08:34 UTCM 3.4 / 138.8 km15 km35 km al S de Mina Collahuasi (Chile)
Thu, 21 Mar 2019
Thu, 21 Mar 03:09 UTCM 2.9 / 113 km37 km48 km al SO de Mina Collahuasi (Chile)
Wed, 20 Mar 2019
Wed, 20 Mar 00:36 UTCM 2.7 / 139.2 km16 km38 km al O de Ollagüe (Chile)
Mon, 18 Mar 2019
Mon, 18 Mar 21:23 UTCM 4.2 / 134 km16 kmAntofagasta, Chile
Thu, 14 Mar 2019
Thu, 14 Mar 19:10 UTCM 2.7 / 129.4 km6 km29 km al O de Ollagüe (Chile)
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Olca-Paruma volcano is a group of 3 stratovolcanoes forming a 15-km-long E-W ridge along the northern Chile border with Bolivia. There are 3 stratovolcanoes in the complex: Volcán Olca, Cerro Michincha, and Volcán Paruma.
The only known historical activity from the Olca-Paruma complex was a flank eruption between 1865 and 1867 from an excentric flank vent. Since around 1990, volcán Paruma has displayed persistent fumarolic activity.

Background:

The complex contains prominent andesitic-dacitic lava flows extending 5 km north from the active summit crater of Volcán Olca as well as lava flows to the north and west originating from vents farther to the west. Volcán Paruma has erupted fresh-looking lava flows of unknown but likely young age, one of which extends 7 km to the SE.
(Source: Smithsonian / GVP volcano information)

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