CVGHM reported that seismicity from Krakatau increased during 19-25 March. Fog prevented observations on 24 March. During periods of clear weather on 25 March, white-to-gray plumes rose 400 m above Anak Krakatau. The Alert Level remained at 2 (on a scale of 1-4).
Source: Center of Volcanology and Geological Hazard Mitigation (CVGHM) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”