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Stromboli volcano (Eolian Islands, Italy): sudden large explosion this afternoon

Fri, 13 May 2022, 18:49
18:49 PM | BY: T
Today's explosion at Stromboli volcano (image: Francesca Utano)
Today's explosion at Stromboli volcano (image: Francesca Utano)
The eruption caused abundant rock falls on the Sciara del Fuoco (image: LGS webcam)
The eruption caused abundant rock falls on the Sciara del Fuoco (image: LGS webcam)
Seismic signal of the eruption on the STR station (image: LGS)
Seismic signal of the eruption on the STR station (image: LGS)
Tilt at OHO station showing the sudden change in slope angle (image: LGS)
Tilt at OHO station showing the sudden change in slope angle (image: LGS)
A series of stronger-than-usual explosions occurred this afternoon at the volcano. The first and likely strongest one was heard and seen from the village at 16:45 local time.
According to our friends on the island, there was a loud booming noise and a tall ash plume that rose several hundred meters above the summit of the island. The eruptive phase consisted of 3 distinct explosions following each other at short intervals.
Seismic and deformation monitoring data show a strong, but short peak of tremor and a sudden change in ground deformation. The latter indicates a change in slope angle, or brief bulging, likely caused by a large, pressurized bubble of gas in the magma-filled conduit that had been rising to the vent and caused the explosion.
Although the overall trend of activity had been declining at the volcano during the past weeks, today's explosions, which would have been very dangerous for anyone near the summit area, illustrates that unusually large eruptions can occur at any time and with no warning.

Previous news

Fri, 13 May 2022, 03:12
Strombolian eruption on Stromboli itself a few days ago (image: Stromboli's Pictures/twitter)
The explosive eruption of the volcano continues. ... Read all
Thu, 12 May 2022, 05:38
INGV reported that during 2-8 May activity at Stromboli was characterized by ongoing explosions from three vents in Area N (North Crater area) and two vents in Area C-S (South-Central Crater area). Explosions from Area N vents (N1 and N2) averaged 3-6 events per hour; explosions from the N1 vent ejected lapilli and bombs mixed with ash 80-150 m high and those at two N2 vents ejected material less than 80 m high. N2 produced weak and occasional spattering. ... Read all
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