No latest activity reported for Lautaro.

Below is a summary of eruption dates and Volcanic Explosivity Indices (VEI).

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. 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. Additional discussion of data sources can be found under Volcano Data Criteria.

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

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

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

Martinic-B M, 1988. Actividad volcanica historica en la region de Magellenes. {Rev Geol Chile}, 15: 181-186

Moreno H, 1985. . (pers. comm.)

Motoki A, Orihashi Y, Naranjo J A, Hirata D, Scvarca P, Anma R, 2006. Geologic reconnaissance of Lautaro volcano, Chilean Patagonia. {Rev Geol Chile}, 33: 177-187

Orihashi Y, Naranjo J A, Motoki A, Sumino H, Hirata D, Anma R, Nagao K, 2004. Quaternary volcanic activity of Hudson and Lautaro volcanoes, Chilean Patagonia: new constraints from K-Ar ages. {Rev Geol Chile}, 31: 207-224

Shipton E, 1960. Volcanic activity on the Patagonian ice cap. {Geog Jour}, 126: 389-396

Stern C R, 1990. Tephrochronology of southernmost Patagonia. {Natl Geog Res}, 6: 110-126

Lautaro is the northernmost of five volcanoes comprising the Australandean volcanic zone of the southernmost Chilean Andes and is the closest volcano to the Chile Triple Junction plate boundary. Volcanoes of the Australandean volcanic zone originated from subduction of the Antarctic plate beneath the South American plate. The Catalog of Active Volcanoes of the World synonyms for Lautaro (Cerro Pirámide, Chalten, and Chaltel) are actually synonyms of the dramatic Patagonian granitic peak of Cerro Fitz Roy (Moreno 1985, pers. comm.). Glacier-covered, 3607-m-high Lautaro volcano, the highest Chilean volcano below 40 degrees south, rises above the Southern Patagonian Ice Field. It has a crater just below its summit on the NW side, and a 1-km-wide crater is located on the NE flank. Ash deposits from eruptions of this dominantly dacitic volcano were visible on aerial photos taken during several occasions during the 20th century, and older ash layers form prominent markers on outflow glaciers of the Patagonian icecap.