Global Volcanism Program | Image GVP-05868
A gas plume rises above lava fountains in a lava lake in the summit crater of Nyiragongo volcano on 20 August 1994. Renewed lava-lake activity began the night of 23-24 June 1994 and continued into the fall of 1996. By August 1995 the surface of the lava lake had risen 50 m.
Photo by Jack Lockwood, 1994 (U.S. Geological Survey).