Río Murta

Photo of this volcano
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  • Chile
  • South America
  • Pyroclastic cone(s)
  • Unknown - Evidence Uncertain
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 46.17°S
  • 72.67°W

  • Unknown

  • 358058
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Río Murta.

The Global Volcanism Program has no Weekly Reports available for Río Murta.

The Global Volcanism Program has no Bulletin Reports available for Río Murta.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Basalt / Picro-Basalt


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

Geological Summary

Basaltic lava flows were emplaced on valley floors along the Río Murta, about 30 km SE of Hudson volcano. The river follows a glacially carved valley cut into granitic rocks of the North Patagonian Batholith. The columnar-jointed lava flows include pillow lavas, lava tubes, and subglacial and sublacustral deposits. They have been considered to be of Holocene age due to lack of erosion and only locally subglacial emplacement. Guivel et al. (2005), however, found that two of three Potassium-Argon dates suggested an age of 850,000-900,00 years, but that a third sample too young to date precisely could be consistent with a Holocene age.

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

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

Photo Gallery

The valley cutting diagonally across the center of this NASA Landsat image (with north to the top) is a tributary of the Río Murta (left) that is partly floored by basaltic lava flows. The Río Ibáñez cuts across the top of the image. The flows were emplaced, partly subglacially, in valleys carved by glaciers in granitic rocks of the North Patagonian Batholith in the southern Andes. The columnar-jointed lava flows of Pleistocene to perhaps Holocene age include pillow lavas, lava tubes, and subglacial and sublacustral deposits.

NASA Landsat7 image (worldwind.arc.nasa.gov)


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.

Guivel C, Morata D, Pelleter E, Espinoza F, Maury R C, Lagabrielle Y, Polve M, Bellon H, Cotten J, Benoit M, Suarez M, de la Cruz R, 2006. Miocene to Late Quaternary patagonian basalts (46-47° S): geochronometric and geochemical evidence for slab tearing due to active spreading ridge subduction. J Volc Geotherm Res, 149: 346-370.

Gutierrez F, Giocada A, Gonzalez Ferran O, Lahsen A, Mazzuoli R, 2005. The Hudson volcano and surrounding monogenetic centres (Chilean Patagonia): an example of volcanism associated with ridge-trench collision environment. J Volc Geotherm Res, 145: 207-233.

Affiliated Databases

Large Eruptions of Río Murta 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.