Logo link to homepage

Report on Inielika (Indonesia) — September 2001

Bulletin of the Global Volcanism Network, vol. 26, no. 9 (September 2001)
Managing Editor: Richard Wunderman.

Inielika (Indonesia) Small February-March 2001 ash plumes and generally low seismicity

Please cite this report as:

Global Volcanism Program, 2001. Report on Inielika (Indonesia). In: Wunderman, R. (ed.), Bulletin of the Global Volcanism Network, 26:9. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN200109-264090.

Volcano Profile |  Complete Bulletin


Inielika

Indonesia

8.73°S, 120.98°E; summit elev. 1559 m

All times are local (unless otherwise noted)


Since the decline in eruptive activity that occurred during 23 January-5 February 2001 (BGVN 26:01), variable seismicity has prevailed. Ash plumes were observed in February and March reaching 10-500 m above the volcano. The Volcanological Survey of Indonesia (VSI) reported varying amounts of seismicity (table 1). VSI has not reported new eruptive activity at Inielika since May 2001.

Table 1. Seismic activity detected at Inielika during February through May 2001. Courtesy of VSI.

Date Deep volcanic (A-type) Shallow volcanic (B-type) Tectonic
06 Feb-11 Feb 2001 23 7 10
20 Feb-26 Feb 2001 34 15 32
27 Feb-05 Mar 2001 57 19 51
06 Mar-12 Mar 2001 30 6 18
12 Mar-18 Mar 2001 4 1 13
19 Mar-23 Mar 2001 3 -- 9
27 Mar-01 Apr 2001 6 -- --
02 Apr-08 Apr 2001 4 -- 11
09 Apr-15 Apr 2001 7 4 6
16 Apr-23 Apr 2001 5 10 11
25 Apr-01 May 2001 5 10 11

Geologic Background. Inielika is a broad, low volcano in central Flores Island that was constructed within the Lobobutu caldera. The complex summit of the 1559-m-high volcano contains ten craters, some of which are lake filled, in a 5-sq-km area north of the city of Bajawa. The largest of these, Wolo Runu and Wolo Lega North, are 750 m wide. The first historical eruption of Inielika, a phreatic explosion that formed a new crater, did not occur until 1905 and was the volcano's only eruption during the 20th century. Another eruption took place about a century later, in 2001. A chain of Pleistocene cinder cones, the Bajawa cinder cone complex, extends southward to Inierie.

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