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Watch Etna liveYou can watch various webcams and seismic signals of Etna live from our new tool: webcams.volcanodiscovery.com/EtnaParoxysme #24 du Nouveau Cratère SE de l'Etna le 12 Avril 2012 (entrées archivées 1-12 Avril 2012)Paroxysme #23 du Nouveau Cratère SE de l'Etna le 1 Avril 2012 (entrées archivées 18 March - 1 Avril 2012) Paroxysme #22 du Nouveau Cratère SE de l'Etna le 18 Mars 2012 (entrées archivées 4-18 Mars 2012) Paroxysme #21 du Nouveau Cratère SE de l'Etna le 4 Mars 2012 (entrées archivées 18 Feb - 4 Mars 2012) Si vous avez quelque chose de nouveau sur l'activité actuelle de l'Etna et aimeriez contribuer, veuillez laisser un commentaire ici ! Ash emissions and strombolian activity from New SE craterUpdate Thu 02 May 08:49
13th New SE crater paroxysmUpdate Sat 27 Apr 20:10
Update Sat 27 Apr 19:26
Update Sat 27 Apr 18:24
13th New SE crater paroxysm ?Update Sat 27 Apr 09:29
Update Sat 27 Apr 01:01 Activity is now increasing towards a new paroxysm from the New SE crater.
Update Fri 26 Apr 20:29
Update Fri 26 Apr 19:18 It seems that a new paroxysm is in the making at the New SE crater. Strombolian activity continues from the summit vent, and the tremor has started to rise as it did during the previous events.
Update Fri 26 Apr 10:23
Ash emissions and strombolian activity from New SE craterUpdate Thu 25 Apr 17:05 Ash emissions and strombolian activity has continued since the last paroxysm and increased in frequency yesterday and today. The tremor signal has remained low, not suggesting that the volcano is in for another paroxysm at the moment, something quite different (so far) from the activity preceding the past paroxysms.
12th New SE crater paroxysmUpdate Sat 20 Apr 22:37 After only 2 days since the previous eruption, the 12th paroxysm of the New SE crater occurred this afternoon. Following a build-up phase of strombolian explosions since yesterday, the eruption culminated with tall lava fountains and lava flows.
At the end of the eruption, at least 2 pyroclastic flows towards the Valle del Bove were reported to have formed. After the eruption, lava flows continue to be active from vents at the base of the cone and descend towards Valle del Bove.
Update Sat 20 Apr 09:29 Weak explosive activity persists at the New SE crater, which has been producing small ash emissions throughout the day yesterday. During the night, a small lava flow emerged from the fissure that cuts through the cone on its eastern flank.11th New SE crater paroxysmUpdate Thu 18 Apr 19:18 The 11th paroxysm from the New SE crater occurred as expected today. As during the previous eruption, the build-up phase with increasing strombolian activity was relatively long. The peak phase itself when activity culminated in lava fountains was comparably short.New paroxysm of the New SE crater in the makingUpdate Thu 18 Apr 10:48 It seems likely that another paroxysm is in the making at the New SE crater: Strombolian explosions have continued throughout the night and this morning, and have been intensifying. Lava seems to have appeared at several vents on the fissure cutting through the New SE crater and the tremor signal is steeply rising.
Strombolian activity from New SE craterUpdate Wed 17 Apr 11:05 New activity has started from the New SE crater last night, when incandescent degassing vents were visible at the crater. This activity has progressively increased during the night and produced strombolian bursts during the second half of the night. Tremor has been showing a slow increase.Update Sat 13 Apr 16:56
10th New SE crater paroxysmUpdate Fri 12 Apr 18:18
The style of this latest eruption was distinctively different from the preceding ones and suggests that Etna is in a period of change. Two pyroclastic flows that formed during the eruption, a smaller one at about 10:35 and a bigger one shortly before 11:00. They could have been caused by to the collapse of parts of the crater wall of the New SE crater. The rise of activity has been gradual over several days, and while tremor peaked around midnight, then dropped a bit, the eruptive activity itself continued to increase and first peaked today: - two phases of lava flows were produced, one at the end of the night and one at noon. The emergence of the lava flow caused a portion of the inner wall to collapse, which in turn produced the pyroclastic flows. - strong single explosions merged into sustained lava fountains first during the early afternoon, after the tremor had started to decrease a bit. This activity was accompanied by a dense and tall plume of lapilli and ash, typical for Etna's paroxysms. Pyroclastic flows during the 12 April paroxysmAt the end of the eruption, partial collapse of the New SE crater's walls triggered pyroclastic flows that descended towards and partly into Valle del Bove. Here are two webcam images (thanks to Geoforum.fr):
Update Fri 12 Apr 10:32
Eruption continuesUpdate Fri 12 Apr 07:51 The eruption continued all night with strong strombolian explosions and the slow effusion of one or several lava flows from the eruptive fissure to the east. The explosions have been accompanied by loud bangs that rattled windows in many kilometers away and could be felt until the Ionian coast.
The volcanic tremor has continued to rise to very high levels (as high as during the most powerful paroxysms of the past weeks) where it has now been stagnating for the past hours. This paroxysm has been quite different from most others: It seems that so far, no true lava fountaining has occurred, rather ongoing strong explosions at a duration that is truly amazing.
Update Thu 11 Apr 19:22 Several vents on the fissure cutting through the cone are now active and produce strombolian activity and/or small fountains (lower vents) feeding a lava flow that starts to descend eastwards towards Valle del Bove.
Update Thu 11 Apr 18:47 This time, Etna is taking it really slowly to build up to the presumed next lava fountaining phase from the New SE crater (paroxysm). Tremor keeps rising, and strombolian explosions slowly increase from the summit vent of the cone.
Begin of the paroxysmUpdate Thu 11 Apr 14:59 Strombolian activity at the New SE crater is intensifying and volcanic tremor is now steeply rising. The 10th paroxysm seems to be about to start.
Update Thu 11 Apr 07:33 This time, Etna seems a bit undecided what to do. Strombolian explosions from the New SE crater continued throughout the night and were sometimes quite intense. Tremor has risen a lot (about 10 times background), but has now been stagnating for a while.
Maybe we are in for something different this time, or, more likely, the expected new paroxysm will take longer than the previous ones to build up.
10th paroxysm in the makingUpdate Wed 10 Apr 23:33 It looks almost certain that we are about to "witness" another paroxysm from the New SE crater: Strombolian explosions continue to increase and the tremor signal has started to rise sharply. (Next update tomorrow morning... )
Update Wed 10 Apr 20:59 Strombolian activity at the New SE crater and tremor continue to rise slowly. It looks more and more likely that a new paroxysm could occur (perhaps very) soon.
Continuing ash emissions and explosionsUpdate Wed 10 Apr 09:57
However, this current behavior of Etna is a quite different from the usual more or less short build-up of activity the cone showed preceding the recent paroxysms. The tremor is slowly increasing. It will be interesting to see what comes next, another paroxysm, or something different? Etna is always good for surprises! Update Tue 09 Apr 11:39 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?
Ash emissions and strombolian activity from New SE craterUpdate Tue 09 Apr 10:22
The tremor showed a light increase during the night, but it is not clear at the moment, if this is already a precursor to yet another paroxysm. Update Wed 03 Apr 23:49
Lava fountains during the 9th paroxysmUpdate Wed 03 Apr 23:45
Boris reports: "After a few hours of seeming a bit undecided whether to really let loose or not, Etna's New Southeast Crater finally did let loose, and blood-red lava fountains shot hundreds of meters into the blue Sicilian sky. Taken at 14:22 GMT (=local time -2) from Monte Vetore, about 6.4 km to the southwest." Source: Boris' Behncke on Flickr Update Wed 03 Apr 16:07 After an hour or so of remaining stable, activity has picked up again to increase!
9th paroxysm of New SE craterUpdate Wed 03 Apr 15:51 The 9th paroxysm from the New SE crater in 2013 is occurring this afternoon. It seems it now has reached its peak phase with lava fountains, and lava flows from the fissure vent of the New SE cone descending into Valle del Bove. It seems that the fountains are much smaller ("only" 2-300 m) compared to those of the last eruption on 16 March, but the peak phase lasts longer this time.
Update Mi 03 Apr 10:58 Tremor at the New SE crater (ETFI signal, Torre del Filosofo station) continues to rise. It seems now almost Certain that a new paroxysm is in the making.
Rising tremor - begin of a new paroxysm?Update Wed 03 Apr 08:01 The tremor has started to rise,- possibly this could be the begin of a new paroxysm at the New SE crater. Clouds in the summit area prevent direct view to confirm if any activity is occurring there at the moment.
Etna quiet, comment on sandstone xenoliths from last paroxysmUpdate Tue 02 Apr 10:01
Sandstone xenoliths from 16 Mar eruption: Closer inspection of the "white lava" reported in yesterday's news revealed that these were so-called xenoliths, i.e. no lava at all, but pieces of sedimentary rock from strata underlying the volcano brought up by the rising magma. In this case, they are pieces of barely compacted beach sandstone, similar to the xenoliths ejected during the flank eruptions in 2011 and 2012, which are believed to have trapped a different (so-called eccentric) shallow magma chamber beneath the volcano. To find such xenoliths as produces of eruptions from the SUMMIT craters is highly unusual and could (*speculation*) indicate that the latest, violent, eruptive episode has actually involved a different magma reservoir as well. Fresh snow has now covered much of the bombs from the recent eruption. |
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