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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 39.927°S
  • 72.027°W

  • 2422 m
    7944 ft

  • 357130
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Mocho-Choshuenco.

The Global Volcanism Program has no Weekly Reports available for Mocho-Choshuenco.

The Global Volcanism Program has no Bulletin Reports available for Mocho-Choshuenco.

Volcano Types

Pyroclastic cone(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Andesite / Basaltic Andesite
Basalt / Picro-Basalt


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

Geological Summary

The compound Mocho-Choshuenco volcano is composed of twin glacier-covered stratovolcanoes, located east of Lago Rinihué and SE of Lago Panguipulli and post-dating a 4-km-wide basaltic caldera. The small Choshuenco stratovolcano, constructed on the NW rim of the caldera, is late-glacial in age. A major plinian eruption produced the Neltume Pumice about 10,300 years ago. The larger andesitic-to-dacitic, 2422-m-high El Mocho volcano, constructed within the caldera, is postglacial and has been historically active. Parasitic craters and basaltic scoria cones are located on the flanks of Mocho-Choshuenco, primarily on the NE and SW sides. Two historical eruptions have been reported, one in 1864 and the other in 1937.

Eruptive History

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1937 Jun 16 Unknown Confirmed   Historical Observations El Mocho
1864 Nov 1 1864 Nov 3 ± 1 days Confirmed 2 Historical Observations SW flank of El Mocho (Chaiquemahuida)

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.


Rinihue | Renihue | Lajara | Panguipulli | Valdivia | Choshuenco-Pillan | Choshuenco-El Mocho


Feature Name Feature Type Elevation Latitude Longitude
Chaiquemahuida, Volcán Pyroclastic cone 39° 56' 0" S 72° 4' 0" W
Stratovolcano 2415 m 39° 55' 0" S 72° 2' 0" W
Fui, Volcanes de Pyroclastic cone 1053 m 39° 54' 0" S 71° 55' 0" W
Gris, Crater Pyroclastic cone 39° 58' 0" S 72° 3' 0" W
Mocho, El
Stratovolcano 2422 m 39° 55' 41" S 72° 1' 37" W
Pilmaiquen, Crater Pyroclastic cone 39° 54' 0" S 71° 58' 0" W
Ranquil, Crater Pyroclastic cone 39° 53' 0" S 72° 0' 0" W
San Carlos, Crateres de Pyroclastic cone 39° 58' 30" S 72° 4' 30" W


Feature Name Feature Type Elevation Latitude Longitude
Buey, Crater del
    Tumba del Buey, La
Crater 1500 m 39° 56' 30" S 72° 4' 0" W

Photo Gallery

The compound Mocho-Choshuenco volcano, seen here from the SW, is composed of two glacier-covered stratovolcanoes post-dating a 4-km-wide caldera. Choshuenco (left), was constructed during the late Pleistocene on the NW rim of the caldera. The andesitic-to-dacitic, 2422-m-high El Mocho (center), is a small cone that grew within the caldera and has remained active into historical time.

Photo by Oscar González-Ferrán (University of Chile).


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.

Casertano L, 1963a. Chilean Continent. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 15: 1-55.

Gonzalez-Ferran O, 1972. Distribucion del volcanismo activo de Chile y la reciente erupcion del Volcan Villarrica. Instituto Geog Militar Chile, O/T 3491.

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

Lara L E, Clavero J (eds), 2004. Villarrica volcano (39.5° S), Southern Andes, Chile. Servicio Geol Nac Argentina Bol, 61: 1-66.

McMillan N J, Harmon R S, Moorbath S, Lopez-Escobar L, Strong D F, 1989. Crustal sources involved in continental arc magmatism: a case study of volcan Mocho-Choshuenco, southern Chile. Geology, 17: 1152-1156.

Moreno H, 1974. Airplane flight over active volcanoes of central-south Chile. Internatl Symp Volc Andean & Antarctic Volc Problems Guidebook, Excur D-3, 56 p.

Moreno H, Naranjo J A, 1991. The southern Andes volcanoes (33°-41° 30' S), Chile. 6th Geol Cong Chile, Excur PC-3, 26 p.

Affiliated Databases

Large Eruptions of Mocho-Choshuenco 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.