Oct 31,Shiveluch news

 

The extrusive eruption at the volcano remains slightly elevated.

Magma had been oozing out into the continuing lava dome where more and more unstable lava material had been accumulating and resulting in pyroclastic flows on 31 October.

Gravitational partial collapse of the lava dome generated block-and-ash flows releasing both dome blocks mixed with debris material over the slope and dense grey lifted ash plumes (so-called phoenix clouds).

Pyroclastic flows are deadly, turbulent hot avalanche of lava rock fragments of all sizes embedded in a mixture of turbulent gas and ash racing down slopes