VolcanoDiscovery's start page
-Contact | Imprint | || Français | Deutsch
edit translation
Check out our destinations and tours!
Follow us:
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
Last earthquakes nearby:
TimeMag. / DepthDistanceLocation
Fri, 27 Jun
Fri, 27 Jun 00:39 UTCM 3.6 / 129 km26 kmANTOFAGASTA, CHILE
Sun, 22 Jun
Sun, 22 Jun 11:33 UTCM 3.6 / 133 km34 kmANTOFAGASTA, CHILE
Sat, 21 Jun
Sat, 21 Jun 20:17 UTCM 3.6 / 142 km17 kmANTOFAGASTA, CHILE
Sun, 15 Jun
Sun, 15 Jun 14:35 UTCM 3.8 / 131.5 km30 km92 km al S de Mina Collahuasi
Thu, 12 Jun
Thu, 12 Jun 15:44 UTCM 3.6 / 146 km28 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.