Shiveluch volcano (Kamchatka): powerful ash explosions, plumes reaching 7-10 km altitude
Shiveluch volcano continues to be very active, with a growing lava dome and occasional large ash explosions. A strong eruption that produced an ash plume that rose to 6 km altitude occurred on 29 May, Russian scientists from KVERT report. According to a Itar-Tass news entry, the plume eventually reached 7.3 km and the eruption followed an increase of seismic activity.
Do, 31. Mai 2012, 09:3809:38 AM | VON: T
Another, probably stronger eruption seems to have occurred on 30 May. An ash plume from Shiveluch volcano was detected at 10 km altitude on satellite data (Tokyo VAAC).
Since the volcano is very remote, its eruptions pose little danger to people on the ground, but the ash plumes they produce are a hazard to aircraft en route from N-America to Japan and are closely monitored by satellite.
Mi, 30. Mai 2012, 06:00
Sheveluch volcano (Central Kamchatka, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 30 May-5 June 2012 (Continuing Activity)
KVERT reported that during 25 May-1 June explosive activity at Shiveluch continued. Ground-based observers and satellite imagery indicated that a viscous lava flow continued to effuse in the active crater, and was accompanied by fumarolic activity and lava-dome incandescence. Observers noted that ash plumes rose to an altitude of 9 km (29,500 ft) a.s.l. on 25 and 27 May, and to an altitude of 6 km (19,700 ft) a.s.l. during 29-30 May. ... Read all
Do, 24. Mai 2012, 09:35
Shiveluch volcano (Kamchatka) activity update: strong explosive activity, large ash plumes up to 8-9 km altitude
Strong explosive activity continued during the past week. Ground-based observers and satellite imagery indicated that a viscous lava flow continued to effuse in the active crater, and was accompanied by fumarolic activity and lava-dome incandescence. ... Read all