The webcam view shows Bezymianny volcano obscured by phoenix clouds resulted from block-and-ash flows this morning (image: KVERT)
The extrusive activity at the volcano has been picking up last night.
The local volcano observatory (KVERT) announced that block-and-ash flows raced over the eastern slope of the lava dome between 19:00 and 20:30 UTC. Resulted ash plumes – phoenix clouds – separated from pyroclastic flows and rose up to 3,5 km in height. At the time of the update, ash emissions have extended about 15 km to the northeast of the volcano.
The reason for triggered pyroclastic density currents was highly likely an increased flux of viscous magma into the lava dome, causing its partial collapse into hot rock falls.
Source: Kamchatka Volcanic Eruption Response Team volcano activity update 17 October 2023
The fumarolic activity at Bezymianny volcano on 30 September (image: KVERT)