Etna volcano update: Violent paroxysm with large lava fountain and lava flows
Tue, 16 Feb 2021, 21:1521:15 PM | BY: T
Lava fountain during Etna's paroxysm this afternoon (image: Massimo Lo Giudice / facebook)
The lava fountain and ash plume in the beginning of the eruption (image: Sara Raciti)
This afternoon, Etna produced a very spectacular lava-fountaining eruptive episode, known as paroxysm.
The lava flow into Valle del Bove (image: Sara Raciti)
Starting from around 5 p.m. local time in the afternoon, the strombolian activity, which had been going on for the past weeks from the New SE crater intensified significantly. Shortly after, a lava overflow was observed from the eastern side of the South East crater. At 16:05 UTC (5:05 p.m. local time), a part of the eastern flank of the cone collapsed into a pyroclastic flow that traveled down the western wall of the Valle del Bove depression.
The flow, as hot material was sliding over snow, produced an ash and steam cloud that quickly dispersed from high altitude winds to the south.
5 minutes later, the explosive activity at the SE crater increased further into lava fountains several hundred meters high, which produced a tall ash plume that rose to up to approx. 10 km elevation (30,000 ft) above sea level, i.e. 7 km above the craters.
The eruption was accompanied, as usual, by a sharp increase in tremor reflecting the sudden high discharge rate of magma being pushed to the surface by expanding gasses in a jet similar to opening a pressurized champagne bottle.
A significant lava flow with two main branches to the east and northeast was quickly flowing from the crater. The larger one to the east quickly reached the bottom of the Valle del Bove approx. 1000 m below.
After about one hour, from 6 p.m., the activity quickly decreased and almost ceased.
By now, it has returned to similar style as it had been during the past days and weeks: there is mild to moderate, but intermittent strombolian activity from at least 3 summit vents, Voragine, Bocca Nuova and the New South-East crater.
- INGVulcani (facebook)
- Massimo Lo Giudice (facebook)
Tue, 16 Feb 2021, 17:30
Etna Volcano Volcanic Ash Advisory: ERUPTION AT 20210216/1610Z VERY STRONG ASH EMISSION ONGOING to 33000 ft (10100 m)
Sat, 6 Feb 2021, 17:08
Beautiful strombolian activity from at least 4 different crater continues with little changes, dominantly from the two vents of the New SE crater, but also from the central crater (Voragine) and the Bocca Nuova crater located west of the Voragine. ... read all
Wed, 3 Feb 2021, 14:50
The volcano continues to produce spectacular strombolian-type explosions involving several of its summit craters. ... read all
Thu, 28 Jan 2021, 09:13
During the night, volcanic tremor descended a bit (although remains high) and the strombolian activity concentrated at the New SE crater with occasional bursts also from Voragine central crater decreased as well. read all
Wed, 27 Jan 2021, 08:08
Europe's most active volcano remains highly active, erupting from at least two of its summit craters: although visibility has been very poor, intermittent clear views allow to see intense strombolian-type activity from the New SE crater and the Voragine central crater. ... read all