Shiveluch volcano (Kamchatka) activity update: growing lava dome, occasional strong explosions ejecting ash to 8-9 km altitude

mer., 13 juin 2012, 10:05
10:05 AM | AUTEUR : T
KVERT reported that during 1-8 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, accompanied by fumarolic activity. Observers noted that ash plumes rose to an altitude of 8.5 km (28,000 ft) a.s.l. on 2 June. Satellite imagery showed a thermal anomaly over the lava dome during 31 May and 1-4 June, and ash plumes drifting 152 km S and 250 km S and ENE during 2-3 June. Seismic data indicated that possible ash plumes rose to an altitude of 8 km (26,200 ft) a.s.l. on 5 June. The Aviation Color Code remained at Orange.
Based on analyses of seismic data, the Tokyo VAAC reported that a possible eruption on 6 June produced an ash plume that rose to an altitude of 8.2 km (27,000 ft) a.s.l. Ash was not detected in satellite images.
(Smithsonian / USGS Weekly Volcanic Activity Report)

Actualités précédentes

mer., 6 juin 2012, 10:05
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. ... Read all
jeu., 31 mai 2012, 09:38
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. ... Read all
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