Based on observations of satellite imagery, the Darwin VAAC reported that an ash-and-steam plume from Bagana drifted WSW on 26 December. A plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted W on 27 December. RVO advised that intermittent activity was continuing.
Source: 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.” Archive photo courtesy of Jack Lockwood,USGS.