Report on Dukono (Indonesia) — 7 September-13 September 2011
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
7 September-13 September 2011
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2011. Report on Dukono (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 7 September-13 September 2011. Smithsonian Institution and US Geological Survey.
1.693°N, 127.894°E; summit elev. 1229 m
All times are local (unless otherwise noted)
Based on analyses of satellite imagery, the Darwin VAAC reported that on 13 September an ash plume from Dukono rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 75 km NW.
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, occurred from 1933 until at least the mid-1990s, when routine observations were curtailed. During a major eruption in 1550, a lava flow filled in the strait between Halmahera and the north-flank cone of Gunung Mamuya. 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.