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Antillanca Group

Antillanca Volcanic Complex

Stratovolcano · Chile · 1979m

Casablanca volcano, whose summit is visible at the upper right, is the highest peak of the Antillanca volcano group. Raihuen crater (lower left) lies at the base of Casablanca. The Antillanca Group is a cluster of late-Pleistocene to Holocene scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. Older late-Pleistocene stratovolcanoes have been extensively dissected by glaciers, but numerous small Holocene volcanic centers are present.
Casablanca volcano, whose summit is visible at the upper right, is the highest peak of the Antillanca volcano group. Raihuen crater (lower left) lies at the base of Casablanca. The Antillanca Group is a cluster of late-Pleistocene to Holocene scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. Older late-Pleistocene stratovolcanoes have been extensively dissected by glaciers, but numerous small Holocene volcanic centers are present. · Photo: Photo by Klaus Dorsch, 2001 (University of Munich). · Wikimedia Commons
Type
Stratovolcano
Country
Chile
Region
South America Volcanic Regions / Southern Andean Volcanic Arc
Elevation
1979m
Coordinates
-40.783, -72.150
Last eruption
-230
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Basalt / Picro-Basalt
Geological summary

The Antillanca Volcanic Complex is a cluster of late-Pleistocene to Holocene basaltic-to-andesitic scoria cones, maars, and small stratovolcanoes covering an area of 380 km2 SE of Lago Puyehue and NE of Lago Rupanco. The most prominent edifice is the Holocene Casablanca stratovolcano, which has a truncated conical profile and produced major explosive eruptions about 2,910 and 2,260 radiocarbon years ago. Older late-Pleistocene stratovolcanoes, such as Sarnoso to the SW and Fiuchá to the NW, are extensively dissected by glaciers. Fissures oriented in four major directions influence the orientation of the cones. Thermal areas are found in scattered locations on the NW side of the complex.

From Wikipedia

The Antillanca Group is a volcanic group of scoria cones, maars and small stratovolcanoes, in Chile. Casablanca stratovolcano is the tallest volcano of the group, which shelters the Antillanca ski resort on its west flank. Aguas Calientes and Puyehue Hot springs also form part of this volcanic group. The complex encompasses 380 km2 and to the west is bordered by the lakes Puyehue and Rupanco.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
960 BCE~887 BCE · 1 eruptions · max VEI 5303 BCE~230 BCE · 1 eruptions · max VEI 5960 BCE814 BCE595 BCE449 BCE303 BCE

Detailed timeline

  1. 230 BCE (±200 yrs)VEI 5Geological estimate
    BCE 230 – Ongoing
    Casablanca (Raihuén crater)
  2. 960 BCE (±150 yrs)VEI 5Geological estimate
    BCE 960 – Ongoing

External links

⚠ For reference only. Not for emergency response.