Follow us:
FacebookTwitterGoogle PlusYouTube
Volcanoes & Earthquakes - new app for Android
 
Random pictures

Etna volcano - eruption update

Volcano webcams and seismic data live
The latest updates are on the top. Reload this page from time to time if you want to check for updates. If you like to share and contribute, you are welcome to leave a comment.
 
New ash emissions from NE crater
Update Sat 12 Dec 16:19
The NE crater started again to produce puffs of ash, generating small plumes drifting southwest.
Ash emissions from Etna's NE crater
Ash emissions from Etna's NE crater
Etna seen from the north with ash emission from NE crater
Etna seen from the north with ash emission from NE crater
Activity ceased
Update Fri 11 Dec 08:49
The volcano is at the moment calm. During Wednesday, the initially strong ash-venting activity from the NE crater decreased and stopped yesterday.
Earthquake activity at the NE side also progressively decreased.
Etna this morning
Etna this morning
Current tremor signal (ESLN station / INGV Catania)
Current tremor signal (ESLN station / INGV Catania)
Decreasing activity
Update Wed 09 Dec 13:45
Ash emissions from NE crater
Ash emissions from NE crater
Depth vs time of recent earthquakes under Etna
Depth vs time of recent earthquakes under Etna
Ash emissions from NE crater continue, but seem to be decreasing in intensity.
According to INGV scientists, the volcano had experienced mild inflation prior to the paroxysm last weekend, and this inflation disappeared. The earthquake swarm on the NE side, still ongoing, but also weakening, is thought to be the cause of compression stress, not extension. In that case, the scenario of a new flank eruption on the NE rift in a near future is much less likely.
Strong ash emissions from NE crater
Update Wed 09 Dec 08:04
Another of the summit vents seems to be becoming protagonist in the current eruptive phase: the NE crater has been producing near-continous small to moderate ash emissions throughout the night and the morning. Incandescence was occasionally seen at the base of the plumes as well, suggesting strombolian activity.
The other vents, in particular Voragine and New SE crater, have been calm.
The NE crater, formed in 1911, had not had much significant activity since 1995-1996 when it produced a series of spectacular paroxysms with associated lava flows.
Ash emission from Etna's NE crater this morning
Ash emission from Etna's NE crater this morning
Ash plume from NE crater seen from west
Ash plume from NE crater seen from west
Shallow earthquakes under Pernicana fault could herald new flank eruption?
Update Tue 08 Dec 19:35
This morning's earthquakes at the Pernicana fault of Etna
This morning's earthquakes at the Pernicana fault of Etna
Explosion from NE crater
Explosion from NE crater
Etna's lava flow last night (photo: Alessandro Lo Piccolo / facebook)
Etna's lava flow last night (photo: Alessandro Lo Piccolo / facebook)
Current tremor signal (ESLN station / INGV Catania)
Current tremor signal (ESLN station / INGV Catania)
Over the morning, surface activity at Etna's New Southeast Crater strongly decreased, and the lava flow seems no longer be active now. Tremor has dropped as well, but ash emissions and occasional explosions continue from several of the summit craters, including the Northeast.
Another significant sign of unrest appeared this morning in the form of small earthquakes, up to magnitude 3.8 and some felt by locals, at shallow depths on the Pernicana fault in the NE sector of the volcano.
The most significant quakes (out of 46 total recorded until 12:45 local time) were at 10:28 (M3.8), at 10:32 (M2.9), at 10:36 (M2.4) and 11:53 (M3.2) at depths between 2-4 km.
Small fractures approximately 2-4 cm wide were noticed on the road surface of the Mareneve road, above an altitude of 1450 m above sea level.
In addition, at the same time, two earthquakes were recorded under the loweer northern slope in the Solicchiata area at 00:21 (M2.6) and at 10:36 local time (M2.4) at depths of between 7 and 14 km.

The Pernicana fault has in the past often acted as the "opener" of the NE rift zone, prone to flank eruptions (last so in Oct 2002). Could this time be similar, could the earthquakes be a precursor of another flank eruption ? Nobody can be sure, but for sure, these signs are at least a bit worrying.
New lava flow into Valle del Bove
Update Tue 08 Dec 09:09
Lava flow from Etna's New SE crater this morning
Lava flow from Etna's New SE crater this morning
Lava fountaining from the pit crater on the upper New SE cone's flank continued all day yesterday and fed a lava flow with two branches, the main one headed to the east reaching quickly the Valle del Bove, a lesser one to the NE base of the cone.
Activity today has decreased, but lava effusion seems to continue. This is likely only a pause in what is certainly one of Etna's most interesting eruptive phases in recent years.
Notice: We offer a volcano special tour to Etna from 11-14 Dec!
Lava flow from New SE crater
Update Sun 06 Dec 15:12
The activity at the New SE crater has been continuous all day and is still gradually increasing. A low lava fountain feeds a lava flow from the new pit crater. This flow occasionally generates small pyroclastic flows as parts of its front collapse on the steep slope.
Some pictures taken around noon:
Lava fountaining and lava flow from NSEC (Photo: Emanuela / VolcanoDiscovery Italia)
Lava fountaining and lava flow from NSEC (Photo: Emanuela / VolcanoDiscovery Italia)
Small pyroclastic flow detaching from the lava flow (Photo: Emanuela / VolcanoDiscovery Italia)
Small pyroclastic flow detaching from the lava flow (Photo: Emanuela / VolcanoDiscovery Italia)
Small pyroclastic flow detaching from the lava flow (Photo: Emanuela / VolcanoDiscovery Italia)
Small pyroclastic flow detaching from the lava flow (Photo: Emanuela / VolcanoDiscovery Italia)
Strombolian activity from New SE crater
Update Sun 06 Dec 09:24
Ash plume from Etna's New SE crater (r)
Ash plume from Etna's New SE crater (r)
Activity from New SE crater
Activity from New SE crater
Activity at the volcano remains elevated, but a significant change is occurring:
While explosions continued from Voragine crater and tremor levels remain high, it seems that since a few hours ago, most magma has now been using another vent: the new pit crater on the upper flank of the New SE crater.
It already has had intermittent activity throughout the current eruption, but this morning started to produce intense strombolian activity and dense ash plumes.
The situation remains highly interesting.

 

More on VolcanoDiscovery:

Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Text and images on this webpage are copyrighted. Further reproduction and use without authorization is not consented. If you need licensing rights for photographs, for example for publications and commercial use, please contact us.