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)
The silhouettes of Acatenango, Fuego and Atitlán volcanoes at dawn (Photo: Tom Pfeiffer)
The VolcanoDiscovery guide & manager Tobias Schorr in front of an fossilized tree at Sigri petrified forest. (Photo by Carmen Strassberger) (Photo: Tobias Schorr)
Eingang zu einer wahrscheinlich vorgeschichtlichen Zisterne, die bis in die Neuzeit verwendet wurde. Eines der beeindruckendsten Bauwerke Santorins. Die Zisterne liegt di...
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The Volcanodiscovery group in September 2010 at the Sarakiniko bay on Milos island. (Photo: Tobias Schorr)
The VolcanoDiscovery group of July 2009 in front of the crater lake of the 2002 eruption of Papadayan volcano. (Photo: Tobias Schorr)
