Bagana volcano (Papua New Guinea): new lava flow from summit

The effusive activity at Bagana volcano since July 2025, including the latest lava flow from 17 December (image: Sentinel-2)

The effusive eruption at the volcano continues.

The latest Sentinel-2 acquisition over the volcano on 17 December confirmed that a new lava flow arm started to descend from the summit vent towards the western flank.