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Stromboli volcano (Eolian Islands, Italy): volcano blows giant, perfect smoke ring

Fri, 27 Mar 2020, 14:05
14:05 PM | BY: T
Enormous, perfect smoke ring rising from Stromboli this afternoon (image: Barbara Engele)
Enormous, perfect smoke ring rising from Stromboli this afternoon (image: Barbara Engele)
Detail of the steam ring (image: Barbara Engele)
Detail of the steam ring (image: Barbara Engele)
Minutes ago, the volcano produced a spectacular "smoke ring", which was seen rising from the crater area and drifting slowly northeastwards over the village.
Its near-perfect circular shape and large diameter (100-200 m?) are truly impressive, perhaps the largest I have ever seen or heard of.
Such ring vortexes are rare, but not unknown on Stromboli and other volcanoes; they can form when strong gas pulses leave a vent with perfect circular diameter, creating regular eddies in the shape of a ring.
Apart from this beautiful phenomenon, Stromboli volcano's activity has been at more or less stable, moderate levels during the past weeks.
It is being dominated by scoria-rich strombolian explosions reaching very high pressure (4 bar) at the NE crater sector, and less frequent eruptions from other vents. The frequency of strombolian explosions has been ranging between 10-15 events per hour, LGS reported:
"Tremor amplitude was stable at medium level. Thermal activity was medium and no thermal anomaly was recorded by MODIS images. This parameter was largely affected by the cloudy conditions of the last 24h. Early measures of SO2 flux, based on a few data, showed low degassing level.
In the last 24h, the CO2 flux measured is of 658 t/d corresponding to medium level. The number of rockfalls is showing medium level (9 events/day). The level of the volcanic activity is medium." (LGS)

Previous news

Wed, 25 Mar 2020, 06:00

Stromboli volcano (Aeolian Islands, Italy) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 March-31 March 2020 (Continuing Activity)

INGV reported that during 23-29 March activity at Stromboli was characterized by ongoing explosive activity mainly from three vents in Area N (north crater area) and at least three vents in Area C-S (south-central crater area). Lava effused from the northern-most vent located on the edge of Area N for about four hours, beginning at 1856 on 28 March, and traveled down the Sciara del Fuoco all the way to the coast. Variable-intensity explosions from Area N occurred at a rate of 8-13 events per hour and ejected lapilli and bombs 80-150 m above the vents. ... Read all
Wed, 4 Mar 2020, 06:00

Stromboli volcano (Aeolian Islands, Italy) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 March-10 March 2020 (Continuing Activity)

INGV reported that during 24 February-3 March activity at Stromboli was characterized by ongoing explosive activity mainly from three vents in Area N (north crater area) and at least three vents in Area C-S (south-central crater area). Variable-intensity explosions from Area N occurred at a rate of 7-10 events per hour and ejected lapilli and bombs 80-150 m above the vents. Ejected tephra fell onto the flanks and some blocks rolled down the Sciara del Fuoco to the coast. ... Read all
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Stromboli volcano
stratovolcano 926 m
Eolian Islands, Italy, 38.79°N / 15.21°E
Current status: erupting (4 out of 5) Stromboli volcano eruptions:
Persistant (near-constant) activity since at least 2-3000 years. Most recent effusive (lava flow) eruptions from Dec. 2002-July 2003, March 2007, Aug-Oct 2014. Paroxysm 3 July 2019
Typical eruption style
Small explosive (strombolian) eruptions, typically every 20-30 mins. Intermittently, ca. every 2-20 years, minor effusive eruptions (lava flows); on average 2-5 times per year larger explosions.

Stromboli volcano tours

Naples, Eolian Islands, Etna (Italy)
Volcanoes of Italy - the Grand Tour
15-day study & walking tour to Italy's volcanoes from Vesuvius to Etna
15 days (14 nights) - Easy to Moderate
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6-20 Oct 2023
Sicily and Eolian Islands (Italy)
From Stromboli to Etna
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6-14 May 2023
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30 Sep - 8 Oct 2023
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