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Report on Dukono (Indonesia) — 30 December-5 January 2021


Dukono

Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
30 December-5 January 2021
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2020. Report on Dukono (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 30 December-5 January 2021. Smithsonian Institution and US Geological Survey.

Weekly Report (30 December-5 January 2021)

Dukono

Indonesia

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

All times are local (unless otherwise noted)


Based on satellite and wind model data, the Darwin VAAC reported that during 1-2 January ash plumes from Dukono rose to 2.1 km (7,000 ft) a.s.l. and drifted NE, E, and SW. The Alert Level remained at 2 (on a scale of 1-4), and the public was warned to remain outside of the 2-km exclusion zone.

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.

Sources: Darwin Volcanic Ash Advisory Centre (VAAC), Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)