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.

Cuellar-Rodriguez J V, Ramirez-Lopez C, 1987. Descripcion de los volcanes Colombianos. {Rev CIAF, Bogota}, p 189-222

Fontaine E, 1991. Evolution petrologique et geochimique du complexe de domes du volcan Azufral Colombie (Amerique du Sud). {Undergraduate proj}, Univ Montreal, 58 p

Hantke G, Parodi I, 1966. Colombia, Ecuador and Peru. {Catalog of Active Volcanoes of the World and Solfatara Fields}, Rome: IAVCEI, 19: 1-73

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. {IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior}.

Mendez Fajury R A, 1989. Catalogo de los volcanes activos en Colombia. {Bol Geol INGEOMINAS, Colombia}, 30: 1-75

Azufral stratovolcano in southern Colombia, also known as Azufral de Túquerres, is truncated by a 2.5 x 3 km caldera containing a Holocene rhyodacitic lava-dome complex. A crescent-shaped lake, Laguna Verde, occupies the NW side of the caldera. Nearly a dozen lava domes are present, the latest of which were formed about 3600 years ago and have active fumaroles. Azufral rocks are more silicic than those of nearby Colombian volcanoes; an apron of rhyodacitic pyroclastic-flow deposits rings the volcano. The last known eruption of Volcán Azufral took place about 1000 years ago.