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Report on Batu Tara (Indonesia) — 16 September-22 September 2015


Batu Tara

Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 16 September-22 September 2015
Managing Editor: Sally Sennert.

Please cite this report as:

Global Volcanism Program, 2015. Report on Batu Tara (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 16 September-22 September 2015. Smithsonian Institution and US Geological Survey.

Weekly Report (16 September-22 September 2015)

Batu Tara

Indonesia

7.791°S, 123.585°E; summit elev. 633 m

All times are local (unless otherwise noted)


Based on a pilot observation, the Darwin VAAC reported that on 15 September an ash plume from Batu Tara drifted 185 km NW at an altitude of 1.5 km (5,000 ft) a.s.l.

Geological Summary. The small isolated island of Batu Tara in the Flores Sea ~50 km N of Lembata (fomerly Lomblen) Island and the main volcanic arc. A scarp on the eastern side reaches the sea, and vegetation covers the other flanks to within 50 m of the summit. This volcano is noted for its potassic leucite-bearing basanitic and tephritic rocks. The first recorded eruption, during 1847-52, produced explosions and a lava flow.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)