Callaqui
Stratovolcano in Chile
Key Facts
Elevation
3,164 m (10,381 ft)
Type
Stratovolcano
Location
-37.920°, -71.450°
Region
Southern Andean Volcanic Arc
Rock Type
Andesite / Basaltic Andesite
Tectonic Setting
Subduction zone
Location
Loading map...
Overview
The late-Pleistocene to Holocene Callaqui stratovolcano has a profile of an overturned canoe, due to its construction along an 11-km-long, SW-NE fissure above a 1. 2-0. 3 million year old Pleistocene edifice.
The ice-capped, basaltic andesite volcano contains well-preserved cones and lava flows, which have traveled up to 14 km. Small craters 100-500 m in diameter are primarily found along a fissure extending down the SW flank. Intense solfataric activity occurs at the southern portion of the summit; in 1966 and 1978, red glow was observed in fumarolic areas (Moreno 1985, pers.
comm. ). Periods of intense fumarolic activity have dominated; few historical eruptions are known.
An explosive eruption was reported in 1751, there were uncertain accounts of eruptions in 1864 and 1937, and a small phreatic ash emission was noted in 1980.
Volcanic Hazards & Risk Assessment
Primary Hazards
- Pyroclastic flows
- Lava flows
- Volcanic bombs and ballistics
- Lahars and mudflows
Risk Level
Geological Composition & Structure
Rock Types
Tectonic Setting
Age & Formation
Eruption Statistics & Analysis
| Metric | Value | Global Ranking | Significance |
|---|---|---|---|
| Total Recorded Eruptions | Unknown | Low | Moderately active volcano |
| Maximum VEI | VEI Unknown | Minor | Local impact potential |
| Recent Activity | 46 years ago | Recent | Recently active |
Monitoring & Alert Status
Monitoring Networks
Current Status
Nearby Volcanoes in South America Volcanic Regions
Quick Info
- •Smithsonian ID: 357091
- •Evidence: Eruption Observed
- •Epoch: Holocene
About the Photo
The ice-capped, 3164-m-high Callaqui volcano has an elongated profile due to construction along an 11-km-long, SW-NE-trending fissure. As many as 16 well-preserved volcanic craters, the majority of which are on the SW flank, have erupted along this fissure and produced lava flows that mantle the volcano's flanks. Two large, ice-filled craters are located at the summit, and intense solfataric activity occurs on the southern side.
Photo by Oscar González-Ferrán (University of Chile).
Authority Sources
Related Volcanoes
Basic Information
This page shows basic data from the Smithsonian Global Volcanism Program. For more detailed information, visit the official Smithsonian page.