Report on Dukono (Indonesia) — 16 July-22 July 2003

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 16 July-22 July 2003
Managing Editor: Gari Mayberry

Please cite this report as:

Global Volcanism Program, 2003. Report on Dukono (Indonesia). In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 16 July-22 July 2003. Smithsonian Institution and US Geological Survey.

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Dukono

Indonesia

1.693°N, 127.894°E; summit elev. 1229 m

All times are local (unless otherwise noted)


Satellite imagery on 21 July at 0724 showed an ash plume from Dukono that rose to a height of ~3 km a.s.l. and extended ~45 km NNE of the summit.

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.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)