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Izalco(ēsäl`kō), volcano, 7,828 ft (2,386 m) high, W El Salvador. It was sometimes called the Lighthouse of the Pacific because it was visible to 19th-century navigators off the coast. Although it has not erupted since 1966, Izalco the volcano is still considered active. The crater was first studied in 1956 by a French expedition.
an active volcano in Central America, in western El Salvador. Izalco has a pointed cone (elevation, 1,885 m), above which a large explosive cloud appears at short intervals (for this reason it is called Lighthouse of the Pacific).