Report on Dukono (Indonesia) — 20 August-26 August 2008
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 20 August-26 August 2008
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2008. Report on Dukono (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 20 August-26 August 2008. Smithsonian Institution and US Geological Survey.
Dukono
Indonesia
1.6992°N, 127.8783°E; summit elev. 1273 m
All times are local (unless otherwise noted)
Based on analysis of satellite imagery, the Darwin VAAC reported that on 24 August an ash plume from Dukono rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted NW. On 26 August, ash plumes rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted W and WNW.
Geological Summary. Reports from this remote volcano in northernmost Halmahera are rare, but Dukono has been one of Indonesia's most active volcanoes. More-or-less 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 N-flank Gunung Mamuya cone. This complex volcano presents a broad, low profile with multiple summit peaks and overlapping craters. Malupang Wariang, 1 km SW of the summit crater complex, contains a 700 x 570 m crater that has also been active during historical time.
