Report on Dukono (Indonesia) — March 2011

Bulletin of the Global Volcanism Network, vol. 36, no. 3 (March 2011)
Managing Editor: Richard Wunderman.

Dukono (Indonesia) Intermittent weak ash plumes persist through 4 April 2011

Please cite this report as:

Global Volcanism Program, 2011. Report on Dukono (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 36:3. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN201103-268010.

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Dukono

Indonesia

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

All times are local (unless otherwise noted)


Dukono has generated intermittent minor ash plumes since before July 2008 (BGVN 33:08, 33:11, 35:04). The Darwin Volcanic Ash Advisory Centre (VAAC) has provided satellite surveillance. Table 11 extends the table of ash plumes presented in BGVN 35:04 through 4 April 2011.

Table 11. Ash plumes reported from Dukono between 30 May 2010 and 4 April 2011, based on data from the Darwin Volcanic Ash Advisory Centre. Each date or date range represents at least one plume.

Date (UTC) Plume Altitude Plume Direction Plume Distance
02 Jun 2010 2.4 km NW 110 km
07 Jun 2010 3 km W 110 km
09-10 Jun 2010 -- W 130 km
18-20 Jun 2010 2.4 km W 120 km
23-24 Jun 2010 2.4 km W 120-225 km
29 Jun 2010 2.4 km W 120-225 km
30 Jun-02 Jul 2010 2.4 km W, NW 90-225 km
06 Jul 2010 2.4 km W, NW 90-225 km
07 Jul 2010 2.4 km N, NW 35-75 km
09-10 Jul 2010 2.4 km N, NW 35-75 km
24 Jul 2010 3 km W 110 km
31 Jul 2010 3 km W 90 km
03 Aug 2010 3 km NNE 130 km
12-22 Aug 2010 3 km W, NW, SW 25-225 km
25-29 Aug 2010 2.1-3 km W, NE 35-110 km
01-02 Sep 2010 2.4 km W, NW 95 km
06-11 Sep 2010 2.4 W, NW, SW 35-95 km
14-18 Sep 2010 2.4 km W, NW, SW 35-260 km
20-25 Sep 2010 2.4 km W, NW 35-260 km
01-04 Oct 2010 2.4 km W, NW 55-205 km
06-07 Oct 2010 2.4 km W 75-110 km
01-02 Nov 2010 3 km NW, SW 45-75 km
23-27 Nov 2010 2.4 km W 75-130 km
03-05 Dec 2010 3 km W 55-110 km
21 Dec 2010 2.7 km NW 55 km
05-07 Jan 2011 2.4-3.7 km W 65-130 km
11 Feb 2011 2.4 km N 75 km
16-17 Feb 2011 3 km W, SW 150-185 km
11-12 Mar 2011 2.1 km SW 110-165 km
18-19 Mar 2011 2.1 km N, NW, NE 37-75 km
04 Apr 2011 2.4 km E 185 km

During the reporting period (1 June 2010- 4 April 2011), there were four thermal alerts derived from the Hawai'i Institute of Geophysics and Planetology Thermal Alerts System (MODVOLC). They were on 1 and 10 September and 6 and 20 November 2010.

Arnold Binas uploaded photos and video showing Dukono ongoing ash emissions during late January 2010 (Binas, 2010, 2011). The video takes the form of an excursion from an adjacent settlement, approach to the volcano, and finally some shots taken at the crater rim. In addition, he posted several still photos of Dukono on Flickr (Binas, 2010). The photo titled "Inside the Dukono crater" noted frequent pulses of ash rising from the crater and his 6 hours on the crater rim led to only one partial view into the crater interior.

References. Binas, A., 2011, Halmahera ? Dukono Volcano 2010, YouTube (URL: http://www.youtube.com/watch?v=NqMax2hqxMo).

Binas, A., 2010, Indonesian volcanoes 2010, hshdude photostream, Flickr (URL: http://www.flickr.com/photos/hshdude/sets/72157623718033396).

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/); Hawai'i Institute of Geophysics and Planetology (HIGP) MODVOLC Thermal Alerts System, School of Ocean and Earth Science and Technology (SOEST), Univ. of Hawai'i, 2525 Correa Road, Honolulu, HI 96822, USA (URL: http://hotspot.higp.hawaii.edu/); Arnold Binas (aka, hshdude), Australia.