KVERT reported that during 1100-1150 on 18 February a new vent opened on Klyuchevskoy?s lower NW flank, near Erman glacier at elevations of 2,500-2,700 m, based on satellite images.
Snowfall in the area of Klyuchi during 18-19 February inhibited webcam views.
Bright incandescence was visible in webcam images beginning at 0323 on 21 February, likely indicating an advancing lava flow.
On 23 February the Kamchatka Volcanological Station team reported that lava was flowing from two vents and bombs were being ejected 50 m high.
A lahar along the Krutenkaya River was visible in an area 7 km E of Klyuchi Village (30 km NNE).
Bright incandescence over the two flank vents was identified in satellite and video images on 24 February.
KVERT raised the Aviation Color Code to Orange (the second highest level on a four-color scale).
Sources: Kamchatka Volcanological Station,Kamchatkan Volcanic Eruption Response Team (KVERT)