Report on Dukono (Indonesia) — December 2003
Bulletin of the Global Volcanism Network, vol. 28, no. 12 (December 2003)
Managing Editor: Richard Wunderman.
Dukono (Indonesia) December 2003 and January 2004 ash plumes to 3 km altitude extend to 185 km
Please cite this report as:
Global Volcanism Program, 2003. Report on Dukono (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 28:12. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN200312-268010.
1.693°N, 127.894°E; summit elev. 1229 m
All times are local (unless otherwise noted)
Satellite imagery for 8 December showed ash plumes at ~ 3 km altitude extending 90-190 km WSW from Dukono. During 10-17 and 24-30 December, thin ash plumes were sometimes visible on satellite imagery extending E to a maximum distance of ~ 90 km. During 31 December to 6 January, low-intensity eruptions at Dukono continued to produce plumes to low levels that extended to ~ 185 km SE.
Geologic Background. 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.
Information Contacts: Darwin Volcanic Ash Advisory Centre (VAAC), Bureau of Meteorology, Northern Territory Regional Office, PO Box 40050, Casuarina, NT 0811, Australia (URL: http://www.bom.gov.au/info/vaac/).