The front of one of pyroclastic flows in this eruption.
The view from "the back" of Volcano approximately at the same time
September 5, 1981. The glow of red-hot avalanches.
November 22, 1981. The glow of red-hot avalanches from surface
of lava flow and from its front.
December 25, 1981.
Intensive red-hot avalanches after December 21 explosive eruption
Red-hot avalanches in January 1982
The June 11, 1982 eruption.
The teardrop-shaped block of lava material
erupted at June 11, 1982.
Evolution of Volcano's active block and
dynamics of Bezymyannyi eruptive activity in 1981-1984.
The arrows on diagram are showing states:
1 - the rest,
2 - the steady stationary development,
3 - the avalanche-like (the more the faster) increase of activity,
4 - the avalanche-like (the less the slower) decrease of activity.