Pyroclastic density current from Shiveluch volcano yesterday (image: KVERT)
The extruded lava dome continues to evolve at high levels.
The KVERT surveillances cameras were being observed a pyroclastic flow from the lava dome at about 21:40 local time yesterday.
The reason for this flow was a partial collapse of the dome resulting in the block-and-ash flow. Collapsing parts triggered moderate-to-strong avalanche that lifted ash plumes (so-called phoenix clouds) as it descended the southwestern slope. The ash column rose to a height of 6,1 km (according to VAAC) and drifted about 12 km to the south of the volcano.
Source: Kamchatka Volcanic Eruption Response Team volcano activity update 12 July 2022