Report on Dukono (Indonesia) — 5 January-11 January 2011
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 5 January-11 January 2011
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2011. Report on Dukono (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 5 January-11 January 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 during 5-7 January ash plumes from Dukono rose to altitudes of 2.4-3.7 km (8,000-12,000 ft) a.s.l. and drifted 65-130 km W.
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.