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Global Volcanism Program | Image GVP-00695

An aerial view from the WSW on 6 January 1987 shows a black lava flow descending from the summit crater of Merapi. During a five-day period beginning 10 October 1986, the dome was partially destroyed by a series of dome-collapse pyroclastic flows (block-and-ash flows). The period of dome growth and lava effusion seen in this photo then began and continued for several years before stabilizing in mid-1990. Photo by Tom Casadevall, 1987 (U.S. Geological Survey).

An aerial view from the WSW on 6 January 1987 shows a black lava flow descending from the summit crater of Merapi. During a five-day period beginning 10 October 1986, the dome was partially destroyed by a series of dome-collapse pyroclastic flows (block-and-ash flows). The period of dome growth and lava effusion seen in this photo then began and continued for several years before stabilizing in mid-1990.

Photo by Tom Casadevall, 1987 (U.S. Geological Survey).

Keywords: gas plume | gas | emissions | stratovolcano | lava dlow | eruption


Merapi