Global Volcanism Program | Image GVP-02111
A black lava flow advances across the floor of a maar on the W flank of North Pagan volcano on 23 May 1981. The flow originated from the summit crater of North Pagan (background) on 15 May. Most of the surface of a lagoon within the maar in the foreground is covered by black floating material from the explosive eruption on the 15th.
Photo by Norm Banks, 1981 (U.S. Geological Survey).
This image is made available as a Public Domain Work, but proper attribution is appreciated.