Augustin volcan (Alaska) - mise à jour éruption: l'augmentation du niveau d'alerte volcaniquejeudi janv. 01, 1970 01:00 |
AVO increased the Volcanic Alert Level to Advisory and the Aviation Color Code to Yellow for Augustine on 22 September due to an increase in seismic activity below the summit over the previous week. During 22-25 September, the earthquakes were generally less than M 1 and were located at shallow depths beneath the summit.
Actualités précédentes
jeudi, avril 11, 2013
Stromboli (Eolian Islands, Italy): Yesterday evening's lava flow has once again beeen very short-lived. Activity (effusion rate) sharply dropped late in the evening and today, only very small amounts of lava are still overspilling from the NE crater rim. Tremor and rockfall signals are much weaker as well. ...
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mercredi, avril 10, 2013
Etna (Sicily, Italy): Strombolian explosions and relatively strong ash emissions from the New SE crater have continued throughout yesterday and the night, and seem to be gradually becoming more intense. ...
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mardi, avril 09, 2013
Etna (Sicily, Italy): Relatively strong ash explosions continue to occur from the New SE crater. At the same time, the tremor signal is rising - maybe we're about to witness the start of a new paroxysm? ...
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