Etna volcano updates and eruption news:
Etna volcano update: Volcano remains restless, increased gas emissions
do, 21 jul 2016, 07:2007:20 AM | DOOR: T
The volcano remains calm at the surface but is restless. Its internal seismic activity continues to be higher than normal and SO2 gas emissions have increased a bit recently (to approx. 7,000 tons/day), which could indicate the influx of fresh magma.
Etna's summit area as seen on 27 May 2016 (image: INGV Catania)
Additionally, occasional small ash puffs, along with pulsating gas emissions, have been observed at the New SE crater since 10 July. These are likely signs of deep-seated explosive activity (degassing from the magma column inside the conduit). Volcanic tremor remains currently stable with no clear trend, but this can change quickly.
Changes of Etna's summit area:
The attached image shows the summit craters as seen on an overflight by volcanologists from INGV Catania on 27 May (link to original report).
There have been significant morphological changes since the end of the last paroxysms in May. In particular, new fractures have appeared that cross the North-East, Voragine and Bocca Nuova craters from north to south and NW-SE through the SE and New SE cones.
These fractures were caused by extensional stress and define a graben separating NE crater and the Voragine. The NE crater itself suffered from repeated collapses of parts of its rim, generating a pile of debris covering its crater floor now, something that can be seen as an obstruction of its vent (and might lead to sudden violent explosions).
Tue, 28 Jun 2016, 10:50
There has been no particular surface activity at the volcano since the violent summit eruptions in late May, but the volcanic tremor amplitude has been gradually rising over the past days. Lees alle
Mon, 6 Jun 2016, 14:20
Etna has remained calm at the surface since the most recent eruptive phase (violent strombolian activity from the NE and Voragine summit craters) ended on 26 May. Lees alle
Fri, 27 May 2016, 07:45
The violent strombolian activity from the Voragine summit crater continued all though Wednesday (25 May) and the following night, but gradually decreased and ceased yesterday. At the moment, no significant eruptive activity is going on. ... Lees alle
Tue, 24 May 2016, 19:57
The 4th episode of lava fountaining has started at the Voragine summit crater. Lees alle
Mon, 23 May 2016, 21:31
Starting from 21:00 this evening weak Strombolian activity has again started from the Voragine crater together with some ash emission. Lees alle