The activity of the Bezymianny volcano gradually increased on 14.03.2022. A new extrusion of lava was probably superimposed on the lava dome of the volcano, with collapses and small avalanches. A gas-steam plume with some amount of brown ash (old material) extended about 90 km west of the volcano.
The extrusive eruption of the volcano continues.
KVERT announces on 15.03 / 23:45 Z that the explosive eruption of the Bezymianny volcano has ended. A moderate gas-steam emission from the volcano is currently observed.
A lava flow is expelled on the slopes of the lava dome, sometimes this process is accompanied by ash avalanches.
A rarefied ash plume from ash avalanches rises up to 2.5 km above sea level and continues to move west of the volcano.
A paroxysmal phase of the eruption, with evacuation of ash up to 12 km a.s.l., began at 12:53 UTC on March 15. There was a formation of short pyroclastic flows that collapsed in the Vostochnaya and Yuzhnaya valleys. The eruptive cloud moved north and northeast of the volcano. At present, the eruptive cloud with a size of about 160 by 320 km at an altitude of 6 km a.s.l. and continues to move 620 km northeast of the volcano.
Moderate gas-steam emission, possibly with some ash from the volcano, continues. Ongoing activity could affect low-flying aircraft.
Bezymianny - incandescence at the dome - image Sentinel-2 bands 12,11,8A at 15.03.2022 / 00:26 - via Mounts project
During the week of March 7 to 13, 2022, Sabancaya was the site of moderate level activity, with an average of 29 explosions per day, accompanied by plumes of gas and ash reaching 2,000 m. above the volcano.
The I.G.P. detected during this period 139 earthquakes of volcanic origin, in connection with the internal circulation of magmatic fluids. VT earthquakes, linked to rock fracturing, occur north of Sabancaya.
No significant deformation anomalies. Four thermal anomalies, VRP max. 20 MW, have been identified, associated with the presence of a superficial lava body in the crater.
The volcanic alert remains at naranja, with a non-accessible zone of 12 km in radius.
Sabancaya - Sentinel-2 bands 12,11,8A & Modis thermal volcanic activity at 15.03.2022 / 3:07 p.m. - Doc.Mirova
In Guatemala, the Fuego volcano observatory -OVFGO- reports 4 to 7 weak, moderate and a few strong explosions per hour, these generate a column of ash at a height of 4,500 to 5,000 meters above the level of the sea, which disperses 15 to 20 km to the west and southwest. Following the explosions, ash falls continue to be recorded in Panimaché I, Morelia, Santa Sofía, El Porvenir, Sangre de Cristo, Yepocapa and other communities.
The explosions produce the descent of weak, moderate and strong avalanches around the crater and towards the ravines of Las Lajas, Ceniza and Trinidad, some reaching the vegetation. Incandescence is reported at a height of 200 to 300 meters above the crater.
Low to moderate rumblings were generated which cause low to moderate shock waves that vibrate houses near the volcano.