Antisana

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 0.481°S
  • 78.141°W

  • 5753 m
    18870 ft

  • 352030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Antisana.

The Global Volcanism Program has no Weekly Reports available for Antisana.

The Global Volcanism Program has no Bulletin Reports available for Antisana.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1801 (?) 1802 May (?) Confirmed   Unknown Volcano Uncertain: possibly Reventador
1748 (in or before) Unknown Confirmed   Unknown Volcano Uncertain: possibly Reventador
[ 1728 ] [ Unknown ] Uncertain 0  

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


The floor of the massive Chacana caldera is seen here in the foreground, looking SE with glacier-covered Antisana volcano in the distance. Chacana is a 32 x 24 km caldera complex of Pliocene-Holocene age. Its outer flanks extend over 50 km, making it one of the largest rhyolitic centers of the northern Andes. Numerous lava domes were constructed within the caldera, which has been the source of frequent Holocene explosive eruptions. Dacitic lava flows were erupted during the 18th century and numerous hot springs are found on the caldera floor.

Photo by Minard Hall, 1976 (Escuela Politécnica Nacional, Quito).
See title for photo information.
Massive, 5753-m-high Antisana volcano is seen here from its SW on the northern flank of Cotopaxi volcano. The glacier-clad Antisana was constructed immediately SE of Chacana caldera, the largest rhyolitic center of the northern Andes, which lies beyond the jagged ridge left of Antisana. The only unequivocal historical eruption of Antisana occurred in 1801-02 from a vent NNE of the summit.

Photo by John Ewert, 1992 (U.S. Geological Survey).
See title for photo information.
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 by Minard Hall, 1975 (Escuela Politécnica Nacional, Quito).
See title for photo information.
Antisana volcano is one of four massive glacier-covered stratovolcanoes constructed along a N-S line at the western edge of Ecuador's Cordillera Real. Its summit crater is breached to the SE, behind the summit in this view from the NW. Its only unequivocal historical eruption produced a lava flow from a NNE-flank vent at the beginning of the 19th century.

Photo by Minard Hall, 1979 (Escuela Politécnica Nacional, Quito).
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Antisana in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites