At least 60 large eruptions of Shiveluch have occurred during the Holocene, making it the most vigorous andesitic volcano of the Kuril-Kamchatka arc.
Violent eruptions happened in 1854 and 1964.
Moderate potential hazards are caused by ash plumes, ash falls, pyroclastic flows, hot avalanches and lahars.
The volcano constitutes a potential hazard to international and local airlines at Kamchatka because its eruptive clouds can rise to a height of 3-20 km ASL and extend for hundreds of kilometers from the volcano.
Seismic activity at Shiveluch was above background levels during 20-27 March.
Based on interpretations of seismic data, ash plumes likely rose to an altitude of 6 km (19,700 ft).
According to observers, fumaroles were active during 23-26 March and explosions produced ash plumes that rose to an altitude of 8 km (26,200 ft) a.s.l. on 24 March.
Analysis of satellite imagery revealed a daily thermal anomaly on the lava dome and an ash plume that drifted 40 km S on 25 March.
The Level of Concern Color Code remained at Orange.
Based on information from KEMSD, the Tokyo VAAC reported that eruptions during 27-28 March produced plumes that rose to altitudes of 4.3-5.5 km (14,000-18,000 ft) a.s.l.
Volcano cam http://data.emsd.iks.ru/videosvl/videosvl.htm
According to observers, fumaroles were active during 23-26 March and explosions produced ash plumes that rose to an altitude of 8 km (26,200 ft) a.s.l. on 24 March.
Analysis of satellite imagery revealed a daily thermal anomaly on the lava dome and an ash plume that drifted 40 km S on 25 March.
The Level of Concern Color Code remained at Orange.
Based on information from KEMSD, the Tokyo VAAC reported that eruptions during 27-28 March produced plumes that rose to altitudes of 4.3-5.5 km (14,000-18,000 ft) a.s.l.
Volcano cam http://data.emsd.iks.ru/videosvl/videosvl.htm
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