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) (Wunderman, R., ed.). Bulletin of the Global Volcanism Network, 32:10. Smithsonian Institution.
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.
|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/).