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Shiveluch volcano (Kamchatka) activity update: strong explosive activity, large ash plumes up to 8-9 km altitude

Do, 24. Mai 2012, 09:35
09:35 AM | VON: T
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.
Satellite imagery during 10-12 and 15-16 May showed a thermal anomaly on the lava dome.
On 12 May observers reported that ash plumes rose to an altitude of 8 km (26,200 ft) a.s.l. and satellite imagery showed an ash plume drifting more than 800 km E.
Based on information from KVERT and analyses of satellite images, the Tokyo VAAC reported that on 20 May an ash plume rose to an altitude of 9.1 km (30,000 ft) a.s.l. and drifted SW. Images the next day showed that the ash had dissipated.
(Smithsonian / USGS Weekly Volcanic Activity Report)

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Mi, 23. Mai 2012, 06:00
KVERT reported that during 18-25 May explosive activity at Shiveluch continued and a thermal anomaly was observed daily in satellite imagery. 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. On 19 May seismic data indicated that possible ash plumes rose to an altitude of 9.5 km (31,200 ft) a.s.l. ... Read all
Do, 17. Mai 2012, 10:05
Strong explosive activity at Shiveluch continued during 4-11 May. 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. Read all
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