Check out our destinations and tours!
Follow us:
FacebookTwitterGoogle PlusYouTube
News

no news in this list.

Ollague volcano

stratovolcano 5868 m / 19,252 ft
Northern Chile, Bolivia and Argentina, South America, -21.3°S / -68.18°W
Current status: dormant (1 out of 5)
Typical eruption style: effusive & explosive
Ollague volcano eruptions: possible eruption in 1903
TimeMag. / DepthDistanceLocation
Sat, 25 Oct
Sat, 25 Oct 19:59 UTCM 4.2 / 94 km17 kmPOTOSI, BOLIVIA
Fri, 24 Oct
Fri, 24 Oct 01:02 UTCM 3.5 / 130.4 km9 km31 km al O de Ollagüe
Tue, 21 Oct
Tue, 21 Oct 19:16 UTCM 3.5 / 143.2 km27 km41 km al S de Ollagüe
Sun, 19 Oct
Sun, 19 Oct 04:55 UTCM 3.3 / 126.7 km36 km46 km al SO de Ollagüe
Thu, 16 Oct
Thu, 16 Oct 23:01 UTCM 3.1 / 135 km37 kmANTOFAGASTA, CHILE
View all recent quakes
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.

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)


More on VolcanoDiscovery:

Comments:

Copyrights: VolcanoDiscovery.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.