Rabaul, Papua New Guinea

RVO reported that ash plumes from Rabaul caldera’s Tavurvur cone continued to be emitted during 18-22 August, although less so than during 16-18 August. Some prolonged ash-free intervals were immediately followed by explosions that produced ash plumes. The plumes drifted NW and caused ashfall in areas downwind. Occasionally incandescence at the summit was observed and roaring noises were heard. Explosions also ejected incandescent lava fragments.

Based on analysis of satellite imagery, the Darwin VAAC reported that on 23 August ash plumes rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted NW.

Sources: Ima Itikarai, Rabaul Volcano Observatory (RVO), Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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