No latest activity reported for #volcano.name#.

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

de Silva S L, Francis P W, 1991. {Volcanoes of the Central Andes}. Berlin: Springer-Verlag, 216 p

Francis P W, Wells G L, 1988. Landsat thematic mapper observations of debris avalanche deposits in the central Andes. {Bull Volc}, 50: 258-278

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

Naranjo J A, 1985. Sulphur flows at Lastarria volcano in the north Chilean Andes. {Nature}, 313: 778-780

Naranjo J A, 1992. Chemistry and petrological evolution of the Lastarria volcanic complex in the north Chilean Andes. {Geol. Mag}, 129: 723-740

The NNW-trending edifice of 5697-m-high Lastarria volcano along the Chile-Argentina border contains five nested summit craters. The youngest feature is a lava dome that overlaps the northern crater rim. The large andesitic-dacitic Negriales lava field on the western flanks was erupted from a single SW-flank vent. A large debris-avalanche deposit is found on the SE flank. Recent pyroclastic-flow deposits form an extensive apron below the northern flanks of the volcano. Although no historical eruptions have been recorded, the youthful morphology of deposits suggest that Lastarria has been active during historical time. Persistent fumarolic activity occurs at the summit and NW flank, and sulfur flows have been produced by melting of extensive sulfur deposits in the summit region.