Caldera del Atuel

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 34.65°S
  • 70.05°W

  • 5189 m
    17020 ft

  • 357023
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Caldera del Atuel.

The Global Volcanism Program has no Weekly Reports available for Caldera del Atuel.

The Global Volcanism Program has no Bulletin Reports available for Caldera del Atuel.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude
357023

Unknown - Evidence Credible

5189 m / 17020 ft

34.65°S
70.05°W

Volcano Types

Caldera
Stratovolcano(es)
Pyroclastic cone(s)
Lava dome(s)

Rock Types

Major
Andesite / Basaltic Andesite
Dacite
Basalt / Picro-Basalt

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
297
297
1,003
676,916

Geological Summary

The 30 x 45 km wide Caldera del Atuel lies just east of the Argentina-Chile border and 18 km SSW of the rim of Diamante caldera. The western rim in part follows the international border, and the headwaters of the Río del Atuel drain to the SE through a wide breach in the caldera rim. The broad floor of the caldera is dotted with 15 dacitic lava domes and 25 basaltic-andesite to andesitic stratovolcanoes and cinder cones. A group of cones known as Las Lágrimas overlies the SW rim of the caldera, and Volcán Guanaqueros on the NE flank of the caldera is a group of young basaltic-to-andesitic cinder cones of possible historical age. The Volcán Overo complex in the NE part of the caldera and the Volcán Sosneado complex in the SE part of the caldera contain numerous very youthful basaltic-to-andesitic pyroclastic cones and lava flows. The Overo complex contains 20 centers, and lava flows of the Sosneado complex cover an area of 200 sq km.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.

The Global Volcanism Program is not aware of any Holocene eruptions from Caldera del Atuel. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Caldera del Atuel page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

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.


Cones

Feature Name Feature Type Elevation Latitude Longitude
Guanaqueros, Volcán Pyroclastic cone 4811 m 34° 31' 0" S 69° 52' 0" W
Lagrímas, Las Pyroclastic cone
Overo, Volcán Stratovolcano 5050 m 34° 36' 0" S 70° 0' 0" W
Sosneado, Volcán Stratovolcano 5189 m 34° 45' 11" S 69° 58' 19" W

Craters

Feature Name Feature Type Elevation Latitude Longitude
Atuel Caldera

Photo Gallery


A complex of snow-covered cones (left-center) partially fills the 30 x 45 km wide Caldera del Atuel, which lies just east of the Argentina-Chile border. The headwaters of the Río del Atuel drain to the SE through a wide breach in the caldera rim (top center) in this NASA International Space Station image (with north to the bottom left). The snow-covered Volcán Overo and Sosneado complexes in the eastern part of the caldera contain numerous very youthful basaltic-to-andesitic pyroclastic cones and lava flows.

NASA Space Station image ISS010-E-19060, 2005 (http://eol.jsc.nasa.gov/).

Smithsonian Sample Collections Database


A listing of samples from the Smithsonian collections will be available soon.

Affiliated Sites

Large Eruptions of Caldera del Atuel Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.