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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 47.2°S
  • 73.48°W

  • 3437 m
    11273 ft

  • 358059
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Arenales.

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

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

Volcano Types


Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

No Data (checked)


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

Geological Summary

Cerro Arenales lies on the Northern Patagonian Ice Field SSW of Hudson volcano. Cerro (or Volcán) Arenales was recognized to be a volcano during a 1963 expedition traversing the Northern Patagonian Ice Field led by Eric Shipton, but it was considered to be extinct. However a small tephra deposit was observed blanketing the icecap on the SW flank of 3437-m-high Cerro Arenales on a March 8, 1979 Landsat image (Lliboutry, 1999). The same satellite image showed a larger tephra layer on the icecap south of Lautaro volcano, 205 km to the south.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1979 Mar 8 (in or before) Unknown Confirmed 1 Historical Observations

The Global Volcanism Program has no synonyms or subfeatures listed for Arenales.

Photo Gallery

Cerro Arenales rises above the surface of the massive Northern Patagonian Ice Field near the center of this composite NASA Landsat image (with north to the top). A tephra layer on the SW flank of Cerro Arenales was observed on a 1979 Landsat image. Outlet glaciers from the ice field descend valleys to the east and west.

NASA Landsat7 image (


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Lliboutry L, 1999. Glaciers of the Wet Andes. In: Williams R J Jr, Ferringo J G (eds) Glaciers of South America, {U S Geol Surv Prof Pap}, 1386-I: 148-206.

Affiliated Databases

Large Eruptions of Arenales 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).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.