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Liste archivée des actualités:dernier (May 2013) ... | Oct-Dec 2010 | Jul-Sep 2010 | | Jun 2010 | May 2010 | Mar-Apr 2010 | Archive
mardi, juin 29, 2010
Aloha! ...plus [lire toutes]
samedi, juin 26, 2010
Le volcan Kliuchevskoy montre une activité strombolienne régulière, avec des émissions de jets de lave incandescentes et des nuages de cendres atteignant plusieurs centaines de mètres, comme indiqué sur les photos récemment publiées sur le site Web KVERT.
jeudi, juin 24, 2010
The lava dome on Montserrat is again growing. The latest USGS/GVP activity report summarizes the recent activity: "MVO reported that pyroclastic flows from the Soufrière Hills lava dome occurred during 11-18 June. One of the largest pyroclastic flows traveled W down Gages Valley; others originated from within the collapse scar. A thermal camera showed several hot areas on the lava dome, likely exposed from rockfall and pyroclastic flow activity. On 28 June a small lahar descended the Belham Valley, to the NW. The Hazard Level remained at 3."
The remote Gaua volcano remains very active. Wellington VAAC monitors ash plumes often rising to 3 km (10,1000 ft) a.s.l.
Based on reports by the VAAC Darwin, Batu Tara volcano in the Sunda Sea continues to produce occasional ash eruptions reaching 2-3 km a.s.l.
mardi, juin 15, 2010
Gorely volcano on the Kamchatka Peninsula in Russia seems to have erupted on or before 12 June 2010, after more than 20 years since its last activity. According to The Voice of Russia, the eruption produced an ash plume streching over 100 km and caused disruption of regional air traffic.
dimanche, juin 13, 2010
Since yesterday, the intensity and frequency of explosions as well as seismicity from Tungurahua volcano has been decreasing, the Geophysical Insitute of Ecuador reports.
samedi, juin 12, 2010
Impressive strombolian and vulcanian activity continues at Batu Tara island. On June 10, 2010, an explosion produced an ash cloud rising to 8,000 ft (ca. 3 km). ...plus
A volcanic eruption from Karymski volcano in Kamchatka produced an ash plume rising to 20000 ft (ca. 6.5 km) elevation on 11 June, as the VAAC Tokyo reports.
vendredi, juin 11, 2010
We're in the progress of making improvements and updates to the design and some internal functionality of our website. For a while, some features might still look odd, but we're working hard on it. ...plus [lire toutes]
jeudi, juin 10, 2010
The activity of Yasur has decreased again to normal, but still elevated levels. Bombs are still occasionally falling on the rim and outside, but the frequency and intensity of the explosions is now lower than during late May, when its alert level was raised to 3. Geohazards now lowered the alert to 2.
On 8 June 2010, Popocatépetl volcano had one of its larger explosions during recent years: an ash plume was generated that rose to 8 km (27,600 feet) altitude a.s.l.
mercredi, juin 09, 2010
A strong eruption of Klyuchevsky volcano on 8 June 2010 produced an ash plume to ca. 7-8 km elevation. (Source: VAAC)
After the spectacular eruption a week ago, Pacaya seems to calm down to normal levels. A modest lava flow on the SE flank is still active and weak strombolian activity occurs from the summit. ...plus
Eyafjallajokull's eruption might not yet have ended or be ending yet. The vent in the western crater still produces small magma explosions and some ash, and a new crater has formed around the vent. Tremor had strongly increased over the past days, but then descreased again. Scientists continue to monitor the state of the volcano closely.
vendredi, juin 04, 2010
Earthquakes were detected in the vicinity of Bezymianny's lava dome during 23-24 May. Fumarolic activity was seen on 21 May and the temperature of the thermal anomaly detected in satellite imagery increased from 18 degrees Celsius on 19 May to 48.8 degrees Celsius on 23 May. So a increase of activity is possible. During 21-28satellite data showed a thermal anomaly over the lava dome and fumarolic activity was detected.Seismic data indicated that an explosive eruption began on 1 June, producing a large ash cloud about 127 by 93 km in dimension. Ash plumes from two explosions rose to altitudes of 8-10 km (26,200-32,800 ft) a.s.l. Ashfall was reported in Kozyrevsk village. Two bright thermal anomalies were seen in satellite imagery, possibly from pyroclastic flow deposits.
It was reported that on 24 May a series of incandescent flows were flowing the W flank, towards the lake, reaching a forest. An ash plume was drifting and the N. Arenal National Park was closed briefly because to the activity.
jeudi, juin 03, 2010
Based on satellite data, Bagana volcano produced small ash clouds rising to 3 km (10,000 ft) and drifting 30-185 km SW and W on 26-28 May.
Tungurahua continues to produce violen explosions with ash plumes rising to 7-9 km. ...plus [lire toutes]
Following the violent eruption on 28 May, a large 90-m-wide lava flow was emitted on 29 May that traveled SSE at an estimated rate of 100 m per hour and burned three houses on the Pacaya Grande ranch. The lava was within 450 m of some other properties including El Chupadero, located 2-2.5 km S of the crater, and disrupted an access road from El Caracol (3 km SW) and Los Pocitos (5.5 km S). ...plus [lire toutes]
mercredi, juin 02, 2010
AVO confirms that the event on 30 May was an eruption that produced an ash plume rising no higher than 4.9 km (16,000 ft) a.s.l. and drifting SW.
mardi, juin 01, 2010
KVERT reports a strong explosive eruption of Bezymianny volcano that occured on May 31 according to seismic data. Ash fall in Kozyrevsk village is continuing. The volcano itself could not be observed. ...plus [lire toutes]
The Alaska Volcano Observatory notes increased steaming activity from remote Cleveland volcano, one of the most active ones in the Aleutian chain. The volcano is currently not covered by a monitoring network, and has the potential of large explosive eruptions that could send ash to 10-20 km elevation. ...plus
Yasur's strong activity is sending ash clouds to up to 1.8 km elevation and causing problems with ash fall in surrounding villages. ...plus [lire toutes]
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