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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.

Basic Data

Volcano Number

Last Known Eruption



1979 CE

3437 m / 11273 ft


Volcano Types


Rock Types

No Data (checked)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)


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.


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

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.

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 (

Smithsonian Sample Collections Database

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

Affiliated Sites

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).
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.