Global Volcanism Program | Image GVP-04559
An aerial view of the upper east flank taken at about 1100 local time on 24 June 1987 shows a lava flow traveling down the ESE flank. Incandescent lava can be seen at several locations along the flow, which eventually traveled 2.5 km from the summit. The snow-covered flanks are darkened by ash deposition from an eruption that began on 19 June.
Photo by Harold Wilson, 1987 (Peninsula Airways), courtesy of John Reeder (Alaska Div. Geology Geophysical Surveys).