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Global Volcanism Program | Image GVP-04356

Steam rises from the summit crater of Nevado del Ruiz volcano on December 10, 1985.  Pyroclastic-surge and -fall deposits from the November 13 eruption extend from the crater.  Glaciers on the upper-NE-flank headwall of the Azufrado valley in the foreground were scoured by pyroclastic surges. Photo by Tom Pierson, 1985 (U.S. Geological Survey).

Steam rises from the summit crater of Nevado del Ruiz volcano on December 10, 1985. Pyroclastic-surge and -fall deposits from the November 13 eruption extend from the crater. Glaciers on the upper-NE-flank headwall of the Azufrado valley in the foreground were scoured by pyroclastic surges.

Photo by Tom Pierson, 1985 (U.S. Geological Survey).


Ruiz, Nevado del