After about a week of weak activity, Redoubt exploded again on April 4th. Our team member Marco Fulle is on location and reports heavy thunderstorms from below the 15 km tall ash plume. More details and photos will be available soon. [lire toutes]

A major eruption of sub-plinian to plinian type took place at Redoubt this morning, sending an ash plume to more than 60,000 ft altitude (>20km), as AVO reports. The eruption, by far the largest in its new cycle of activity so far, started at 09:24 am local time, following a few days with lower activity after the powerful explosions on March 22-23. [lire toutes]

Another larger explosion this morning is reported from Redoubt volcano (source: AVO). [lire toutes]

After about two days of increasing seismicity, a large plinian or sub-plinian explosive eruption is in course at Mt. Redoubt volcano; . ...plus [lire toutes]

A medium-sized eruption has occurred at Redoubt volcano, Alaska, the USGS / Alaska VolcanoObservatory (AVO) reports. Seismic activity had increased markedly since Sunday afternoon (March 15, 2009) and was followed by 4 hours of continuous volcanic tremor. ...plus [lire toutes]

On 25 February, a small mud flow traveled several hundred meters. Web camera views and satellite imagery showed no unusual activity. Steam plumes were seen on the web camera on 26 and 1 March. [lire toutes]

It is reported that there is a whole which hot steam comming out. The glaciers have started to melt down. A near erupion is possible. The last eruption of Redoubt volcano took place in 1989. [lire toutes]

The volcano Redoubt in Alaska is very close to an eruption. The Alaska Volcano Observatory reports that there are increasing seismic levels. Until now there is no eruption visible. The staff of the observatory is watching the volcano on a 24 hours base. The alert level is at orange, what is a serious sign for a near eruption. The ice covered volcano may cause lahars and later eventually even pyroclastic flows (?). The situation is surely dangerous after the experience USA made with Mt. St. Helens. [lire toutes]

The Alaska Volcano Observatory has changed the volcano alert level for Redoubt Volcano to advisory, with an aviation code level of yellow. In a notice issued Wednesday, AVO said it changed the alert level due to changes in gas emission and heat output from the volcano. The recent changes are different from background activity. [lire toutes]