Global Volcanism Program | Image GVP-04359
Nevado del Ruiz is a broad glacier-covered volcano that covers more than 200 km2. The modern cone consists of a cluster of lava domes constructed within the summit caldera of an older edifice. The ash-mantled summit is seen here from the ESE on 18 December 1985, a little more than a month after the catastrophic eruption of 13 November. The devastating 1985 lahars swept down four major river drainages that day and caused around 24,000 fatalities.
Photo by Norm Banks, 1985 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.