Global Volcanism Program | Image GVP-04557
An eruption in 1987 began with explosive activity on 19 June that deposited ash over snow on all sides of the volcano. On 23 June, the date of this photo, a lava flow from the summit was observed that eventually extended 2.5 km down the ESE flank. Lava fountaining was observed on 22 July and on 28 August a large explosive eruption produced an ash plume that reached over 10 km altitude.
Photo by Harold Wilson (Peninsula Airways), 1987, courtesy of John Reeder (Alaska Div. Geology & Geophysical Surveys).
Keywords: lava flow