A light-colored plume rises above the summit of Mayon volcano on 14 September 1984, seen here from Cagsawa on the SSE flank. The darker and denser column to its left is an ash plume rising from the pyroclastic flow moving down the SW flank.

Photo by Ernesto Corpuz, 1984 (Philippine Institute of Volcanology and Seismology).

Keywords: pyroclastic flow | pyroclastic density current | ash | stratovolcano | eruption | explosive eruption | ash plume | PDC

Mayon