Cerro del Azufre

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 21.787°S
  • 68.237°W

  • 5846 m
    19175 ft

  • 355061
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Cerro del Azufre.

The Global Volcanism Program has no Weekly Reports available for Cerro del Azufre.

The Global Volcanism Program has no Bulletin Reports available for Cerro del Azufre.

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Uncertain

5846 m / 19175 ft


Volcano Types

Lava dome(s)

Rock Types

Andesite / Basaltic Andesite

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Cerro del Azufre is the largest and youngest volcanic center of a 50-km-long, NW-SE-trending chain of Chilean volcanoes just west of the Bolivian border, south of Salar de Ascotán. The northern summit forms the 5846 m high point of the andesitic volcano; an older southern stratovolcano extends SE towards the Pleistocene Cerro Aguilucho volcano. A large group of late-Pleistocene lava flows originating from the northern cone extend toward the northern flanks and partially overlies a debris-avalanche deposit now largely buried by the Salar de Ascotán. The Chanka (Pabellón) dacitic lava-dome complex occupying the lower western flank is pristine-looking, but has been Potassium-Argon dated at 1.5 million years. Two possible Holocene dacitic lava domes that were erupted along a NW-SE line east of the summit ridge mark the most recent effusive activity of the Cerro del Azufre complex, but two youthful-looking craters on the main edifice could be of Holocene age.


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

de Silva S L, 2007. (pers. comm.).

de Silva S L, Francis P W, 1991. Volcanoes of the Central Andes. Berlin: Springer-Verlag, 216 p.

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

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Roobol M J, Francis P W, Ridley W I, Rhodes M, Walker G P, 1976. Physio-chemical characteristics of the Andean volcanic chain between latitudes 21° and 22° south. In: Gonzalez-Ferran O (ed) {Proc Symp Andean & Antarctic Volcanology Problems (Santiago, Chile, Sept 1974)}, Rome: IAVCEI, p 450-464.

The Global Volcanism Program is not aware of any Holocene eruptions from Cerro del Azufre. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Cerro del Azufre 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.


Feature Name Feature Type Elevation Latitude Longitude
Apacheta, Cerro Dome 4995 m 21° 49' 0" S 68° 12' 0" W
Chac-Inca, Cerro Dome 5071 m 21° 48' 0" S 68° 12' 0" W
Chanka Dome 4840 m 21° 47' 0" S 68° 18' 0" W
Pabellón, Cerro Dome 4536 m 21° 48' 0" S 68° 19' 0" W

Photo Gallery

The large volcanic complex at the center of this NASA Space Shuttle image (with north to the upper right) is Cerro del Azufre. The 5846-m-high volcano lies just west of the Bolivian border, south of Salar de Ascotán (the light-colored area at the upper right). A youthful lava dome forms a small circular area below and to the right of the center of the image, and the Holocene San Pedro-San Pablo volcanic complex lies at the left-center.

NASA Space Station image ISS005-E-8788, 2002 (http://eol.jsc.nasa.gov/).

Smithsonian Sample Collections Database

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

Affiliated Sites

Large Eruptions of Cerro del Azufre 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.