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jeu., 1 janv. 1970, 00:00L'éruption qui avait commencé le 10 mai de cette année, continue encore à faible émission de lave de la fissure évents est de SE le cratère à 2900 m d'altitude.
La lave continue d'affluer dans la Valle del Bove, mais pour la plupart du temps et à sa façon, la lave active est cachée à l'intérieur des tubes et croûte-sur des canaux. Read more... lire toutes
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lun., 22 sept. 2008, 10:51
A new eruption started at Piton de la Fournaise volcano at 15h30 local time on Sep 21, 2008. Read more...
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dim., 14 sept. 2008, 21:43Based on SIGMET reports and pilot observations, the Buenos Aires VAAC reported that during 5-6 September ash plumes from Ubinas rose to altitudes of 5.5-6.4 km (18,000-21,000 ft) a.s.l. and drifted NE and SE. Geologic Summary. A small, 1.2-km-wide caldera that cuts the top of Ubinas, Peru's most active volcano, gives it a truncated appearance. Ubinas is the northernmost of three young volcanoes located along a regional structural lineament about 50 km behind the main volcanic front of Peru. The upper slopes of the stratovolcano, composed primarily of Pleistocene andesitic lava flows, steepen to nearly 45 degrees. The steep-walled, 150-m-deep summit caldera contains an ash cone with a 500-m-wide funnel-shaped vent that is 200 m deep. Debris-avalanche deposits from the collapse of the SE flank of Ubinas extend 10 km from the volcano. Widespread Plinian pumice-fall deposits from Ubinas include some of Holocene age. Holocene lava flows are visible on the volcano's flanks, but historical activity, documentedsince the 16th century, has consisted of intermittent minor explosive eruptions.
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dim., 14 sept. 2008, 21:30
The IG reported that clouds mostly prevented visual observations of Tungurahua during 3-9 September. On 3 September, a small lahar carried blocks down river drainages to the NW. Steam plumes rose 200 m above the crater on 6 September. On 8 September, a lahar descended a drainage to the S and carried blocks up to 50 cm in diameter.
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dim., 14 sept. 2008, 21:29Based on reports from JMA, the Tokyo VAAC reported explosions from Suwanose-jima during 5-7 September. Resultant plumes rose to altitudes of 1.5-1.8 km (5,000-6,000 ft) a.s.l. Plumes drifted E on 5 September.
dim., 14 sept. 2008, 21:24
MVO reported that during 29 August-5 September, data suggested that the W side of the Soufrière Hills lava dome continued to grow. Lahars and rockfalls dominated the activity. Lahars likely descended the Tar River valley on 29 and 31 August. On 1 September, a lahar descended the Belham River valley to the NW; the event lasted approximately 50 minutes. A new vent on the NW part of the lava dome, a little further N of the previous Gages vent, was observed during an overflight on 4 September. The smell of volcanic gases was occasionally noticed when the wind blew N and NE. The Hazard Level remained at 3.
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jeu., 1 janv. 1970, 00:00KVERT a signalé que l'activité sismique à Chiveloutch a été légèrement au-dessus des niveaux de fond pendant 29 août-5 septembre. Les panaches de gaz-et-vapeur avec une petite quantité de cendres ont généré des avalanches 29 et 30 août et rose à une altitude de 4 km (13 100 pieds) d'altitude l'analyse de l'imagerie satellite révèle une anomalie thermique quotidienne sur le dôme de lave. Le Code de couleur du niveau de préoccupation reste à Orange.
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dim., 14 sept. 2008, 21:21
dim., 14 sept. 2008, 21:11It was reported that ash plumes from Rabaul caldera's Tavurvur cone continued to be emitted during 1-8 September. Ashfall was also reported in areas downwind. Ash accumulation in Rabaul Town was clear in mid-to-late July and in August; fresh ashfall and re-suspended ashfall due to winds and cars caused "unpleasant" conditions. During 1-6 September, conditions improved due to decreased ashfall, changes in wind patterns, and light rains that inhibited ash re-suspension. Continuous incandescence at the summit was observed, and roaring and rumbling noises were heard. Explosions also ejected incandescent lava fragments. Read more...
dim., 14 sept. 2008, 21:08
There was reported that a seismic crisis at Piton de la Fournaise during 8-9 September was characterized by hundreds of earthquakes. The Alert Level was not changed.
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