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Report on Dukono (Indonesia) — October 2007

Bulletin of the Global Volcanism Network, vol. 32, no. 10 (October 2007)
Managing Editor: Richard Wunderman.

Dukono (Indonesia) Thermal anomalies indicate possible activity at Dukono in October 2007

Please cite this report as:

Global Volcanism Program, 2007. Report on Dukono (Indonesia). In: Wunderman, R. (ed.), Bulletin of the Global Volcanism Network, 32:10. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN200710-268010.

Volcano Profile |  Complete Bulletin


Dukono

Indonesia

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

All times are local (unless otherwise noted)


Based on visual observations, the Center of Volcanology and Geological Hazard Mitigation (CVGHM) reported that during the week of 18-25 June 2007 white-gray ash rose to 50-250 m above the summit. The hazard status of the volcano remained on level 2 (on a scale of 1-4).

No significant change of seismicity was noted with respect to previous weeks, and no thermal anomalies were measured during that week by the MODIS/MODVOLC satellite team (table 6). Subsequently, a sequence of thermal anomalies were measured by satellite between 10 August and 27 October 2007.

Table 6. Thermal anomalies at Dukono based on MODIS-MODVOLC imaging between 9 March 2007 and 27 November 2007 (continued from the list in BGVN 32:03). Courtesy of Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts System.

Date (UTC) Time (UTC) Pixels Satellite
09 Mar-09 Aug 2007 -- 0 --
10 Aug 2007 1645 1 Aqua
27 Sep 2007 1350 1 Terra
02 Oct 2007 1705 1 Aqua
04 Oct 2007 1355 1 Terra
04 Oct 2007 1650 1 Aqua
11 Oct 2007 1405 1 Terra
13 Oct 2007 1350 1 Terra
13 Oct 2007 1645 2 Aqua
16 Oct 2007 1715 1 Aqua
18 Oct 2007 1410 2 Terra
18 Oct 2007 1705 1 Aqua
27 Oct 2007 1655 1 Aqua
28 Oct-27 Nov 2007 -- 0 --

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: Center of Volcanology and Geological Hazard Mitigation (CVGHM), Jalan Diponegoro 57, Bandung 40122, Indonesia (URL: http://vsi.esdm.go.id/); Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts System, School of Ocean and Earth Science and Technology (SOEST), University of Hawai'i, 2525 Correa Road, Honolulu, HI 96822, USA (URL: http://modis.higp.hawaii.edu/).