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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.

Carr M J, 1984. Symmetrical and segmented variation of physical and geochemical characterisitics of the Central American volcanic front. {J Volc Geotherm Res}, 20: 231-252

Mooser F, Meyer-Abich H, McBirney A R, 1958. Central America. {Catalog of Active Volcanoes of the World and Solfatara Fields}, Rome: IAVCEI, 6: 1-146

Sapper K, 1925. {The Volcanoes of Central America}. Halle: Verlag Max Niemeyer, 144 p

Weber H S, Wiesemann G, 1978. Mapa Geologico de la Republica de El Salvador/America Central. Bundesanstalt fur Geowissenschaften und Rohstoffe, Hannover, Germany, 1:100,000 scale geologic map in 6 sheets

Conchagua is a conical, but deeply eroded stratovolcano overlooking the Gulf of Fonseca at the SE tip of El Salvador. Conchagua (also known as Cochague) is elongated in a WSW-ENE direction, and the eastern and southern flanks descend into the sea. Cerro de La Bandera, ENE of Cerro del Ocote, the 1225-m-high summit of Conchagua, appears to be younger in age. Multiple peaks mark the summit of Cerro del Ocote, whose flanks are more dissected than those of Cerro de La Bandera. Recently active fumarolic areas form barren spots on both major peaks of this little-studied volcano. Eruptions reported at Volcan Conchagua for the years 1522, 1688, 1868, and 1947 are erroneous, and may refer to landslides associated with earthquakes.