Report on Paluweh (Indonesia) — 12 December-18 December 2012
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 12 December-18 December 2012
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2012. Report on Paluweh (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 12 December-18 December 2012. Smithsonian Institution and US Geological Survey.
8.32°S, 121.708°E; summit elev. 875 m
All times are local (unless otherwise noted)
Based on analyses of satellite imagery and wind data, the Darwin VAAC reported that during 14-15 December ash plumes from Paluweh rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 35-65 km NW and W. On 17 December an ash plume rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted 55 km E. The next day an ash plume drifted 55 km E at altitudes of 3.4-3.7 km (11,000-12,000 ft) a.s.l.
Geological Summary. Paluweh volcano, also known as Rokatenda, forms the 8-km-wide island of Palu'e north of the volcanic arc that cuts across Flores Island. The broad irregular summit region contains overlapping craters up to 900 m wide and several lava domes. Several flank vents occur along a NW-trending fissure. The largest historical eruption occurred in 1928, when strong explosive activity was accompanied by landslide-induced tsunamis and lava dome emplacement. Pyroclastic flows in August 2013 resulted in fatalities.