The first historic eruption of Santa Ana was in 1520. Since then this stratovolcano has erupted 12 times, most recently in 1920. Fumaroles have been observed with the crater. Photograph of Santa Ana copyrighted and provided by Steve O'Meara of Volcano Watch International.
Volcanoes in the Santa Ana area.
Carr, M.J., and Pontier, N.K., 1981, Evolution of a young parasitic cone towards a mature central vent: Izalco and Santa Ana volcanoes in El Salvador, central America: Journal of Volcanology and Geothermal Research, v. 11, p. 277-292.
McClelland, L., Simkin, T., Summers, M., Nielsen, E., and Stein, T.C., 1989, Global Volcanism 1975-1985: Englewood Cliffs, New Jersey, Prentice Hall, 655 p.
Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.
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