Report on Dukono (Indonesia) — April 2010

Bulletin of the Global Volcanism Network, vol. 35, no. 4 (April 2010)
Managing Editor: Richard Wunderman.

Dukono (Indonesia) Intermittent ash plumes from January 2009 through May 2010

Please cite this report as:

Global Volcanism Program, 2010. Report on Dukono (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 35:4. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN201004-268010.

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Dukono

Indonesia

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

All times are local (unless otherwise noted)


Minor ash plumes had continued to be intermittently reported from this long-active volcano during October 2008-January 2009 (BGVN 33:11). The Darwin VAAC has provided continuous monitoring of the activity through satellite surveillance (table 10).

Table 10. Ash plumes reported from Dukono between 7 January 2009 and 30 May 2010 (UTC). Data from the Darwin Volcanic Ash Advisory Centre.

[Skip text table]
    Date (UTC)               Plume Altitude               Plume Direction (distance from vent)

    07 Jan 2009              1.8 km                       E and SE
    18 Jan 2009              3 km                         NE and N
    09-11 Feb 2009           3 km                         E and SE
    12 Apr 2009              3 km                         NW (55 km)
    28 Apr 2009              4.5 km                       E (150 km)
    29 Apr-04 May 2009       3.7-4.5 km (pilot report)    E and NE (45-165 km)
    05-07 May 2009           3-3.7 km                     SE (20-110 km)
    14 May 2009              3 km                         N (110 km)
    26 May 2009              3 km                         N (90 km)
    27-28 May 2009           3 km                         NE (55-110 km)
    06-08 Jun 2009           ?                            NW and N (20-75 km)
    16 Jun 2009              1.5 km                       NE (40 km)
    28 Jun 2009              2.4 km                       N (75 km)
    05 Jul 2009              2.4 km                       E (65 km)
    07-08 Jul 2009           2.4 km                       NE (85 km)
    06-07, 10 Aug 2009       2.4-3 km                     NE (45-130 km)
    15 Aug 2009              3 km                         NW (90 km)
    26 Aug-01 Sep 2009       2.1 km                       NE (20-65 km )
    07-08 Sep 2009           2.1 km                       E and SE (35-75 km)
    12, 14 Sep 2009          2.4 km                       W and SW (25-75 km)
    17-20 Sep 2009           2.4 km                       NE and ESE (25-75 km) 
    24 Sep 2009              2.4 km                       NW (65 km)
    02 Oct 2009              2.7 km                       NE (75 km)
    06 Oct 2009              3 km                         NE (55 km)
    07 Oct 2009              3 km                         NW (74 km)
    15 Oct 2009              2.4 km                       NW (45 km)
    22-23, 26-27 Oct 2009    2.1-2.4 km                   NE and E (45-95 km)
    31 Oct 2009              1.5 km                       NE and N (35-110 km)
    08 Nov 2009              3 km                         NW (35 km)
    30 Nov 2009              3 km                         E (75 km)
    05-06 Dec 2009           3 km                         E and SE (55-85 km)
    09-11 Dec 2009           3 km                         E and SE (90-130 km)
    05-06, 10 Feb 2010       2.4 km                       SW and W (55-150 km)
    13 Mar 2010              2.7 km                       E (75 km)
    22 Mar 2010              2.4 km                       SE (45 km)
    02 Apr 2010              2.4 km                       S (55 km)
    09 Apr 2010              3.7 km                       NE (220 km)
    10-12 Apr 2010           1.5-2.1 km                   NE (20-75 km)
    27 Apr 2010              3 km                         NW (45 km)
    03 May 2010              3 km                         W (90 km)
    04 May 2010              3 km                         NW, NE, SE (25-100 km)
    06 May 2010              4.6 km (pilot report)        NW
    08-10 May 2010           3 km                         NW, NE, SE (25-100 km)
    16 May 2010              3 km                         W (165 km)
    18 May 2010              3 km                         NW (165 km)

Dukono's visible plume was almost continuous between January 2009 and February 2010 with only two short periods of quiescence for about eight weeks between mid-February and mid-April 2009 and eight weeks from 11 December 2009 to 5 February 2010. Three periods of relatively stronger activity occurred in late April through 28 May 2009 and created ash plumes that drifted the greatest distances, 110-150 km. A higher level of activity occurred again in early to mid-August and in early December 2009 just before the second period of reduced activity. Two recent MODVOLC thermal alerts occurred on 30 May 2010; they were detected on both the Terra and Aqua satellites.

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: 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/); Center of Volcanology and Geological Hazard Mitigation (CVGHM), Jalan Diponegoro 57, Bandung 40122, Indonesia (URL: http://portal.vsi.esdm.go.id/joomla/); 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/).