Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 49.358°S
  • 73.28°W

  • 1500 m
    4920 ft

  • 358061
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Viedma.

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

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

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.

Eruptive History

There is data available for 1 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1988 Oct 15 ± 45 days Unknown Confirmed 2 Historical Observations Southernmost crater

Deformation History

There is no Deformation History data available for Viedma.

Emission History

There is no Emissions History data available for Viedma.

Photo Gallery

The figure-8-shaped area rising above the Patagonian Icefield at the upper left part of this NASA Landsat mosaic is part of the Viedma volcanic complex. An outflow glacier descends into Lake Viedma at the lower right. This mostly subglacial volcano produced an eruption in 1988 that confirmed the presence of a postulated subglacial vent in the Patagonian Icefield NW of Viedma Lake. The 1988 eruption deposited ash and pumice on the icecap and produced a mudflow that reached Viedma Lake.

NASA Landsat7 image (
See title for photo information.
Nunatak del Viedma is seen from Paso del Viento with Cordón Mariano Moreno partially hidden within the clouds. The huge lateral moraine of Viedma Glacier lies in the foreground. The glacier surface displays three conspicuous irregular tephra bands distorted by differential movement of the glacier.

Photo by Pedro Skvarca, 1994 (Instituto Antártico Argentino, from U. S. Geol. Survey Prof. Paper 1386-I).
See title for photo information.

Smithsonian Sample Collections Database

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

Affiliated Sites