Olca-Paruma volcano
stratovolcanoes 5407 m / 17,739 ft
Northern Chile, Bolivia and Argentina, South America, -20.93°S / -68.48°W
Current status: dormant (1 out of 5)
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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The erupting crater of Yasur volcano under a moon- and starlit sky. The torch of a distant observer on the opposite rim looks like a second moon. (Photo: Tom Pfeiffer) |
Powerful explosion from the southern vent of Yasur volcano in the evening twilight (Photo: Tom Pfeiffer) |
Hot drops of sulfuric acid at a fumarole of Stefanos crater on Nisyros volcano, Greece (Photo: Tobias Schorr) |
Early morning at the shore of Lake Atitlán with Atitlán, Toliman and San Pedro volcanoes in the background (Photo: Tom Pfeiffer) |
