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estratovolcán 5868 m / 19,252 ft
El norte de Chile, Bolivia y Argentina, América del Sur, -21.3°S / -68.18°W
Current status: normal or dormant (1 out of 5)
Volcán Ollagüe (also known as Oyahué) is a massive andesitic stratovolcano in northern Chile on the border with Bolivia. It contains a dacitic summit lava dome. No historical eruptions have been confirmed from Ollagüe, but there is intense fumarolic activity and a persistent steam plume emanates from a fumarole on the south side of the summit dome.
Typical eruption style
There are active sulphur mines on the upper western and southern flanks of the volcano which are serviced by a now disused switchback road which reaches 5650 m elevation and rank as one of the highest in the world.
: effusive & explosive
Erupciones del volcán Ollague
: possible eruption in 1903
|Fecha / Hora||Revista / Profundidad||Distancia||Ubicación|
|Mon, 16 Nov 2020 (GMT)|
|16 Nov 2020 19:41:51 GMT|
182 km - More
|15 km||Bolivia, 139 km northeast de Calama (Provincia de El Loa, Antofagasta, Chile)|
Ollague Volcano suffered flank collapse during the Pleistocene and produced a large debris-avalanche deposit which extends westward and separates the Salar de San Martín from the Salar de Ollagüe salt flats.
3 youthful-looking silicic lava flows were emplyed after the collapse, but are probably still older than the last glaciation about 11,000 years ago.
A youthful-looking scoria cone on the lower WSW flank, La Poruñita, was long believed to be relatively young, but has been dated to an age of 420,000 to 680,000 years.
(Source: Smithsonian Global Volcanism Program)
See also: Sentinel hub
| Landsat 8
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