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Antisana volcano

Antisana

Stratovolcano · Ecuador · 5753m

Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi. The 1.4 x 1.8 km summit crater, seen here from the north, is breached to the SE. Viscous, youthful block lava flows have issued from radial fissures on the flanks of 5753-m-high Antisana. The only unequivocal historical eruption took place from 1801 to 1802. Eighteenth-century eruptions occurred NW of Antisana within Chacana caldera, which lies beneath the cloud bank in the foreground.
Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi. The 1.4 x 1.8 km summit crater, seen here from the north, is breached to the SE. Viscous, youthful block lava flows have issued from radial fissures on the flanks of 5753-m-high Antisana. The only unequivocal historical eruption took place from 1801 to 1802. Eighteenth-century eruptions occurred NW of Antisana within Chacana caldera, which lies beneath the cloud bank in the foreground. · Photo: Photo by Minard Hall, 1975 (Escuela Politécnica Nacional, Quito). · Wikimedia Commons
Type
Stratovolcano
Country
Ecuador
Region
South America Volcanic Regions / Northern Andean Volcanic Arc
Elevation
5753m
Coordinates
-0.481, -78.141
Last eruption
1802
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi, along the western margin of the Eastern Cordillera, 50 km SE of Quito. An older edifice forming the east side of the volcano was constructed over granitic and metasedimentary rocks and is itself overtopped on its NW side by the current edifice. Viscous lava flows have issued from radial fissures on the flanks. A lava flow was erupted from a vent NNE of the summit during 1801-1802.

From Wikipedia

Antisana is a stratovolcano of the northern Andes, in Ecuador. It is the fourth highest volcano in Ecuador, at 5,753 metres (18,875 ft), and is located 50 kilometres (31 mi) SE of the capital city of Quito.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1728~1735 · 1 eruptions · max VEI 01743~1750 · 1 eruptions · max VEI 21794~1801 · 1 eruptions · max VEI 217281743176517791794

Detailed timeline

  1. 1801VEI 2Geological estimate
    1801 – 1802-05
    Volcano Uncertain: possibly Reventador
  2. 1748VEI 2Geological estimate
    1748 – Ongoing
    Volcano Uncertain: possibly Reventador
  3. 1728VEI 0Geological estimate
    1728 – Ongoing

External links

⚠ For reference only. Not for emergency response.