Report on Dukono (Indonesia) — March 2007

Bulletin of the Global Volcanism Network, vol. 32, no. 3 (March 2007)
Managing Editor: Richard Wunderman.

Dukono (Indonesia) Early 2007 ash plume and occasional thermal anomalies

Please cite this report as:

Global Volcanism Program, 2007. Report on Dukono (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 32:3. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN200703-268010.

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Dukono

Indonesia

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

All times are local (unless otherwise noted)


Our last Dukono report discussed an ash plume on 5 December 2006 (BGVN 32:01). During the time period of this report, 1 January through mid-April 2007, the Darwin Volcanic Ash Advisory Centre (VAAC) detected a small plume on satellite imagery on 16 January 2007 that lacked clear ash content.

The 16 January plume was imaged using data from two satellites (DMSP and MTSAT-1R). The Darwin VAAC's ash advisory noted a low-level plume blowing to the SSE on an image taken at 2233 on 15 January (time and date in terms of UTC; 0733 on 16 January local time).

Table 5 contains a list of thermal anomalies detected from MODIS satellites by the Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts System during the first four months of 2007. There were two alerts on 13 February followed by one alert on the respective days 15, 18, and 24 February and 8 March.

Table 5. Thermal anomalies at Dukono based on MODIS-MODVOLC retrievals and processing for the interval 1 January through April 2007. Courtesy of Hawai'i Institute of Geophysics and Planetology (HIGP) Thermal Alerts System.

Date (UTC) Time (UTC) Pixels Satellite
13 Feb 2007 1405 1 Terra
13 Feb 2007 1700 1 Aqua
15 Feb 2007 1350 1 Terra
18 Feb 2007 1715 1 Aqua
24 Feb 2007 1345 1 Terra
08 Mar 2007 1410 1 Terra

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://portal.vsi.esdm.go.id/joomla/); 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/); 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 (http://hotspot.higp.hawaii.edu/).