Stromboli volcano (Italy): intense activity during the night, very strong explosion, lava flows reach the sea

Fr, 30. Aug 2019, 13:00
13:00 PM | VON: T
The major eruption of Stromboli last night (image: LGS)
The major eruption of Stromboli last night (image: LGS)
The lava flow on the southern Sciara reaching the sea this morning (image: LGS webcam at Punta Corvo)
The lava flow on the southern Sciara reaching the sea this morning (image: LGS webcam at Punta Corvo)
Strong eruption from the SW vent area preceding the lava flow (image: LGS webcam at Punta Corvo)
Strong eruption from the SW vent area preceding the lava flow (image: LGS webcam at Punta Corvo)
Decrease of seismic activity during this morning (image: LGS)
Decrease of seismic activity during this morning (image: LGS)
The lava flow on the southern Sciara sector reaching the sea this morning (image: LGS webcam at Punta Labronzo)
The lava flow on the southern Sciara sector reaching the sea this morning (image: LGS webcam at Punta Labronzo)
Deformation of the summit area (image: LGS)
Deformation of the summit area (image: LGS)
Yesterday evening, activity at the volcano increased again significantly (after having dropped a bit during after the paroxysm on Wed 28 Aug):
First, a lava flow from the NE vent area began again to descend onto the upper Sciara after around 21:35 local time. Then, at at 22h43:41 local time, a very strong explosion occurred, characterized as "major" - this classification meaning it is much stronger than average, but still significantly weaker than the 3 July or 28 Aug paroxysms. It originated from the central / SW crater area and had been preceded by significant rapid ground inflation during the 2 minutes before.
Following the explosion, overall activity at the volcano remained very high, with near-constant strong lava spattering, lava overflows and intermittent strong stormbolian explosions from various vents.
The lava flow described above increased strongly after the 22:43 explosion and reached about half-way down the slope, but later decreased and mostly ceased by around midnight - watch video:

At 03:46 local time, another strong eruption occurred from the SW vent(s), and a new lava flow started to descend on the southern Sciara, eventually reaching the sea around 04:40 where it was active in the early morning for a few hours time (until approx. 07:00) before decreasing and stopping again.

After the surge in activity during the night, when tremor and deformation had reached high levels, activity gradually decreased during the morning hours to remain at levels closer to the average of the past weeks (still very high).

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Do, 29. Aug 2019, 05:37
Thermal view of the upper Sciara and NE crater area this morning (image: INGV Catania thermal webcam)
The lava overflow on the upper NE part of the Sciara which had been active following the paroxysm of yesterday seems to have mostly ceased during the night. Read all
Mi, 28. Aug 2019, 19:47
The lava flow in the northern part of Stromboli's Sciara del Fuoco this evening (image: LBZ webcam)
Following today's paroxysm, which surely has again significantly changed morphology of the crater terrace, a new lava flow started to descend on the upper Sciara del Fuoco from the NE vent area. ... Read all
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