Report on Talang (Indonesia) — June 2002

Bulletin of the Global Volcanism Network, vol. 27, no. 6 (June 2002)
Managing Editor: Richard Wunderman.

Talang (Indonesia) Small explosion earthquakes dominate through June 2002

Please cite this report as:

Global Volcanism Program, 2002. Report on Talang (Indonesia). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 27:6. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN200206-261160.

Volcano Profile |  Complete Bulletin


Talang

Indonesia

0.979°S, 100.681°E; summit elev. 2575 m

All times are local (unless otherwise noted)


During 11 March-16 June 2002 at Talang, seismicity was dominated by small explosion earthquakes (table 4). A thin white plume reached 50-100 m above the summit and sometimes drifted E. Hotspring temperatures were 42-64°C. As of 13 May, the Volcanological Survey of Indonesia (VSI) reported that no seismic data were available because of a broken seismograph. During April and early May seismicity had been decreasing. Talang remained at Alert Level 2 (on a scale of 1-4) throughout the report period.

Table 4. Earthquakes at Talang during 11 March-12 May 2002. The seismograph was broken as of 13 May, so no seismicity data was available through at least 16 June. Courtesy VSI.

[Skip text table]
    Date (2002)     Deep volcanic   Shallow volcanic     Small     Tectonic
                      (A-type)          (B-type)       explosion

    11 Mar-17 Mar        1                17               61         14
    18 Mar-24 Mar        2                --              120          9
    25 Mar-31 Mar        2                --              120         13
    01 Apr-07 Apr        2                --               63          5
    08 Apr-14 Apr        1                --               23         12
    15 Apr-21 Apr        3                --               --          6
    22 Apr-28 Apr        6                --               --          7
    29 Apr-05 May        4                --               --         14
    06 May-12 May        3                --               --          3

Geologic Background. Talang, which forms a twin volcano with the extinct Pasar Arbaa volcano, lies ESE of the major city of Padang and rises NW of Dibawah Lake. Talang has two crater lakes on its flanks; the largest of these is 1 x 2 km wide Danau Talang. The summit exhibits fumarolic activity, but which lacks a crater. Historical eruptions have mostly involved small-to-moderate explosive activity first documented in the 19th century that originated from a series of small craters in a valley on the upper NE flank.

Information Contacts: Volcanological Survey of Indonesia (VSI), Jalan Diponegoro No. 57, Bandung 40122, Indonesia (URL: http://www.vsi.esdm.go.id/).