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Tacora, the northernmost volcano of Chile, is a twin volcano with Chupiquiña to the north and lies near the Peruvian border. The volcano overlies a flat-lying platform of ignimbrites at about 4200 m elevation forming the Arica Altiplano. The roughly conical volcano is covered by glaciers down to about 5500 m elevation, and an explosion crater lies on the NW side 300 m below the summit. Solfataric and fumarolic activity has been reported on the east side of the andesitic volcano (Catalog of Active Volcanoes of the World), but Moreno (1985 pers. comm.) indicated there may not have been Holocene eruptions. Young lava flows on south flank appear to overlie glacial valleys (de Silva 2007, pers. comm.). Hantke (1939b) cited a report of eruptions in 1930 and 1937 that are not listed in other sources. Numerous sulfur mines occupy the saddle between Tacora and Chupiquiña, and hot springs are located on the eastern side of Tacora.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|[ 1937 Aug 5 ]||[ Unknown ]||Uncertain|
|[ 1930 ]||[ Unknown ]||Uncertain|
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.
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Chupiquiña, Nevado||Stratovolcano||5980 m||17° 40' 0" S||69° 29' 0" W|
|Towering 5980-m-high Tacora, the northernmost volcano of Chile, lies near the border with Perú and is a twin volcano with Chupiquina. Tacora is seen here from the SE. Although there have been uncertain reports of historical eruptions, and solfataric and fumarolic activity has been reported on the east side, Holocene eruptions from Tacora have not been documented.
Photo by Oscar González-Ferrán (University of Chile).
|Tacora, the northernmost volcano of Chile, rises to the NW above the steep-walled Allane valley. The 5980-m-high Tacora lies near the border with Perú and is a twin volcano with Chupiquina, hidden behind Tacora in this view. Although there have been uncertain reports of historical eruptions, and solfataric and fumarolic activity has been reported on the east side, Holocene eruptions have not been documented. The Arica to La Paz railway transects the plateau on the northern side of the Allane valley.
Photo by Lee Siebert, 2004 (Smithsonian Institution).
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.
de Silva S L, 2007. . (pers. comm.).
de Silva S L, Francis P W, 1991. Volcanoes of the Central Andes. Berlin: Springer-Verlag, 216 p.
Gonzalez-Ferran O, 1974. Arica - Nevados de Payachata. IAVCEI Andean Antarctic Volc Problems Guide Book - Excursion A-1, 3-35.
Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.
Hantke G, 1939b. Ubersicht uber die Vulkanische Tatigkeit vom April bis Dezember 1938. Zeit Deut Geol Ges, 91: 757-765.
IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..
Moreno H, 1985. . (pers. comm.).