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Ollague volcano

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.
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.

Typical eruption style: effusive & explosive
Erupciones del volcán Ollague: possible eruption in 1903

Últimos terremotos cercanos

Fecha / HoraRevista / ProfundidadDistanciaUbicación
Mon, 16 Nov 2020 (GMT)
16 Nov 2020 19:41:51 GMT
3.2

182 km - More
15 kmBolivia, 139 km northeast de Calama (Provincia de El Loa, Antofagasta, Chile)

Background

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)

Latest satellite images


See also: Sentinel hub | Landsat 8
 

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