Nevado del Ruiz
Nevado del Ruiz, volcano, 17,457 ft (5,321 m) high, in the Cordillera Central of the N Andes, E Colombia, on the Caldas-Tolima dept. border. A broad, glacier-covered stratovolcano, it can produce explosive eruptions with pyroclastic flows, and the melting of glaciers by those hot gases has resulted in devastating lahars (fast-moving mud and debris flows) during its eruptions, most recently in Nov., 1985, when a lahar buried or washed away Armero, a town 46 mi (74 km) away. The 1985 eruption, in which some 23,000 died, was one of the deadliest volcanic disasters of the 20th cent.
"Nevado del Ruiz." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (April 21, 2019). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/nevado-del-ruiz
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