Report on Dukono (Indonesia) — June 1993
Bulletin of the Global Volcanism Network, vol. 18, no. 6 (June 1993)
Managing Editor: Edward Venzke.
Dukono (Indonesia) White to light-gray ash cloud reaches 600-1,500 m
Please cite this report as:
Global Volcanism Program, 1993. Report on Dukono (Indonesia) (Venzke, E., ed.). Bulletin of the Global Volcanism Network, 18:6. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199306-268010
Dukono
Indonesia
1.6992°N, 127.8783°E; summit elev. 1273 m
All times are local (unless otherwise noted)
A very dense white to light-gray ash cloud from Dukono was reported on 23 June by a commercial aircraft pilot. The cloud was rising ~600-1,500 m above the summit . . . . VSI notes that Dukono is very active, with small eruptions from the main crater almost every day. The height of the eruption column averages 300-600 m above the crater rim. No significant changes in activity have occurred in June or July.
Geological Summary. The Dukono complex in northern Halmahera is on an edifice with a broad, low profile containing multiple peaks and overlapping craters. Almost continuous explosive eruptions, sometimes accompanied by lava flows, have occurred since 1933. During a major eruption in 1550 CE, a lava flow filled in the strait between Halmahera and the Gunung Mamuya cone, 10 km NE. Malupang Wariang, 1 km SW of the summit crater complex, contains a 700 x 570 m crater that has also had reported eruptions.
Information Contacts: ICAO; W. Tjetjep, VSI.
