Stromboli volcano (Italy): new lava flow on Sciara del Fuoco
giovedì 28 mag 2026 03:49 | Autore: martin
The new lava flow on the Sciara del Fuoco flank early morning on 28 May (image: Geophysics and Volcanology, Etnean Observatory)
The National Institute of Geophysics and Volcanology, Etnean Observatory (INGV) reported that a new lava flow erupted from the North Crater area onto the Sciara del Fuoco flank.
At the same time, intense spattering and strombolian explosions continue from the North and Central-South crater areas.
No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed.
Stromboli volcano (Italy): new lava flow on Sciara del Fuoco
giovedì 7 mag 2026 06:15 | Autore: martin
The new lava flow on Sciara del Fuoco as seen from satellite on 6 May (image: Sentinel-2 processed by Martin Kelko)
The National Institute of Geophysics and Volcanology, Etnean Observatory (INGV) reported that a new lava flow erupted from the North Crater area onto the mid Sciara del Fuoco flank.
Frequent glowing rockfalls from the lava flow front tumble down the slope and reach the coastline.
At the same time, intense spattering and strombolian explosions continue from the North and Central-South crater areas.
No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed.
Stromboli volcano (Eolian Islands, Italy): intense activity and lava flow
giovedì 7 mag 2026 05:21 | Autore: T
Strombolian activity and lava overflow on the Sciara del Fuoco on 6 May 2026 (Stromboli volcano) (image: Yashmin Chebli)
The lava flow on the Sciara del Fuoco (Stromboli volcano) (image: Yashmin Chebli)
Strombolian activity and lava overflow on the Sciara del Fuoco (Stromboli volcano) (image: Yashmin Chebli)
Intense activity has been causing a new lava overflow on the upper Sciara del Fuoco. Our group on location observed vigorous strombolian activity and spattering from multiple vents and an active lava flow that traveled from the crater area about half way down to the sea.
Stromboli volcano (Eolian Islands, Italy): short lived lava overflow
lunedì 20 apr 2026 07:41 | Autore: T
Thermal view of the upper Sciara del Fuoco showing the recent lava flow (image: INGV webcam)
A phase of elevated activity has been taking place at the volcano, leading to a short-lived lava flow on the upper third of the Sciara del Fuoco during the past weekend.
Activity has since decreased again and the lava flow is now cooling.
Stromboli volcano (Italy): continuing lava flow on Sciara del Fuoco
mercoledì 1 apr 2026 03:48 | Autore: martin
The lava effusion on Sciara del Fuoco early this morning (image: National Institute of Geophysics and Volcanology Catania)
The effusive-explosive eruption at the volcano continues.
The lava continues to emerge from the North Crater and keeps the flow in the upper Sciara del Fuoco.
The seismic instrument detected a slight increase in volcanic tremor yesterday.
Stromboli volcano (Italy): new lava overflow on Sciara del Fuoco
mercoledì 25 feb 2026 06:45 | Autore: martin
New lava flow on Sciara del Fuoco on 25 February (image: INGV)
The National Institute of Geophysics and Volcanology, Etnean Observatory (INGV) reported that a new lava flow erupted 2 days ago from the North Crater area onto the upper Sciara del Fuoco and is still continuing.
No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed.
Stromboli volcano (Italy): new lava overflow on Sciara del Fuoco
lunedì 10 nov 2025 19:37 | Autore: martin
Incandescent lava flow on the Sciara del Fuoco flank tonight (image: Il Mondo dei Terremoti)
The National Institute of Geophysics and Volcanology, Etnean Observatory (INGV) reported that a new lava flow erupted today morning from the North Crater area onto the upper Sciara del Fuoco.
At about 10:00 local time, the lava began to overflow the North crater. At the same time, spattering from the summit vents intensified, while intermittent strombolian explosions continued without noticeable change in size or frequency from other vents in the North and Central-South crater areas.
No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed.
Stromboli volcano (Italy): short-lived lava overflow on upper Sciara del Fuoco
lunedì 10 feb 2025 19:56 | Autore: T
Stromboli in the evening of Mon 10 Feb 2025 (image: INGV Catania webcam)
A short-lived lava flow was erupted today afternoon from the summit vents onto the upper Sciara del Fuoco. The volcano observatory in Catania, the National Institute of Geophysics and Volcanology, Etnean Observatory, (INGV) reported from 14.08 local time, lava began to overflow the North crater.
At the same time, spattering from the N2 vent intensified, while intermittent strombolian explosions continued without noticeable change in size or frequency from other vents in the North and Central-South crater areas.
No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed. In the evening, the lava overflow stopped again.
Stromboli volcano (Eolian Islands, Italy): new lava overflow on Sciara del Fuoco, which stopped in meantime
venerdì 7 feb 2025 07:00 | Autore: martin
A thermal webcam captured lava emissions and vigorous spattering yesterday (image: Istituto Nazionale di Geofisica e Vulcanologia)
The National Institute of Geophysics and Volcanology (INGV) reported that a new effusive eruption commenced at the volcano yesterday.
At about 06:08 local time, a new lava started to ooze out from the North Crater area following an intense spattering over the past few days. The lava had been travelling beyond the crater further onto the upper Sciara del Fuoco.
Ordinary strombolian explosions had continued from both North and Central-South crater areas.
The volcanic tremor reached its peak and preceded the lava flow formation, which in turn, returned back to medium values.
Meanwhile, the lava flow from the North Crater area ceased some time yesterday and is now no longer active while cooling.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 7 February 2025
Mild explosions at summit vents, activity level down to high
Update Fri 02 Aug 2024 14:45
Thermal view of Stromboli's crater area (left) and a corresponding visual of the NE crater area (right) from the video by INGV
For several days now, the activity at the volcano has been characterized by significant degassing as well as its typical, intermittent small strombolian explosions mainly from a vent in the NE sector of the crater terrace.
This activity produces small ash plumes and ejects small amounts of incandescent lava.
INGV published a recent drone video of the crater area with a side-by-side comparison of a thermal view (wide angle) and a zoomed-in visible-range video of the NE crater:
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View embedded content from X/TwitterLarge explosion sends glowing lava and ash to several hundred meters above summit
Update Fri 26 Jul 2024 19:58
Large explosion at Stromboli this evening (image: facebook.com/strombolistatidanimo)
A larger-than-average explosion occurred at the volcano a short time ago, at 21:15 local time. Pictures posted on social media show a dense eruption plume rising at least 1 km above the summit including incandescent material ejected to several hundred meters height.
Stromboli volcano (Eolian Islands, Italy): new lava flow on Sciara del Fuoco
venerdì 27 dic 2024 20:04 | Autore: martin
The new lava flow has been oozing out from the North Crater area (image: Sentinel-2)
A new effusive eruption commenced at the volcano yesterday.
In the evening, a new lava formed at the North Crater area, following the lava overflowing beyond the crater further onto Sciara del Fuoco. This also confirms the latest Sentinel-2 satellite imagery from 27 December.
The volcanic tremor reached its peak at approx. 18:40 UTC which returned back to medium values.
Small explosions at summit vents resume
Update Wed 17 Jul 2024 08:34
It seems that the typical activity of Stromboli resumed yesterday early afternoon. A small ash plume from what is likely a strombolian-type small explosion at one of the summit vents was observed.
Black-sand beaches turn gray, observations on the deposits of the 11 July paroxysm
Update Mon 15 Jul 2024 09:59
Ash plume with heavy ash fall after the paroxysm on Stromboli on 11 July afternoon, seen from the port area (image: Francesca Utano)
The eastern flank of Stromboli covered with a gray-brown ash deposit a day later
The ash deposit near the port area, about 1 mm thick
Plants were still covered with ash two days later
The gray-brown ash covering the black sand beach
Waves and footsteps gradually "cleaning" the black beach again
Greenish pumice washed ashore
Pumices collected while swimming
Closer look at the pumces shows enclaves of black scoria: this is the older magma still present in the conduit when the fresh batch of magma arrived generating the vertical explosion and turning into the light-colored pumice
The paroxysm on 11 July created a massive, tall ash column, both from the explosive eruption at the summit and from the turbulent hot avalanche that was triggered by it and descended over the Sciara.
An impressive ash plume rose several kilometers and drifted southeast over the island and the sea. As it passed, some minutes after the explosion, the east and southeast flanks of the island, including the southern half of the village of Stromboli, received a significant amount of ash fall, strongest in the areas near the port and towards the Forgia Vecchia area exactly east of the summit.
Brownish gray ash and floating pumice
The ash fall deposit was mostly very fine-grained gray to brownish powdery ash, that reached up to about a millimeter thick in the southernmost areas near the port. Most residents were relatively quick to clean the roofs of homes, terraces and other surfaces. The famous black-sand beach of Stromboli was suddenly no longer black, but gray-brown. This is now gradually disappearing as waves wash over it, people walk around, and this way bring back the black sand to the surface.
In the village of Stromboli, a second deposit from the eruption came from the sea: light, greenish to yellowish pumice was floating on the water and started to be washed in by waves. They were up to 2-3 cm in diameter in size, but mostly around 1 cm. These pumices, often called the "golden pumice" are known as the typical products of Stromboli's paroxysms. They are formed by very hot, gas-rich magma that rises fast through the conduits and is erupted in a large quantity over a short time. It represents the magma that arrives from deeper sources of the volcanic system with almost no alteration.
In contrast, the normal activity of Stromboli, regular but small explosions from the various vents at the summit, produce almost black, glassy scoria or black sandy ash. This is formed during long-lasting eruptive periods when magma rises only very slowly, thus resides some time in the conduits, when it starts to loose some of its gas and form tiny crystals. It is erupted essentially the way soda water erupts tiny drops of water when the gasses reach the surface: small fragments are ejected when the gas bubbles in the magma-filled conduits are released at the events during small, strombolian explosions or spattering.
Looking carefully at the pumices, one can see that they actually contain small parts of dark lava: when the fresh magma rose, it also mixed and ejected along the pre-existing more degassed magma. Thus, the enclaves of dark scoria in the golden pumice are from this older magma.
What is the relation between the pumice and the gray-brown ash?
Interestingly, the ash fall on the southern part of the village did not contain any of the larger pumices, only very few small fragments of it. It must have been coming from a different plume. A hypothesis could be that the pumice-rich part of the plume, corresponding to the magma erupted during the vertical explosion, missed the eastern part of Stromboli altogether and only deposited on the south and the sea, which later washed the floating pumices ashore on the eastern part of the island
The part of the plume that created the fine ash fall might have been from the plume that the avalanche on the Sciara del Fuoco generated, when parts of the crater terrace collapsed. This plume contained a lot of older, pulverized rock, that originally had been in the crater area. Residents noted that it was producing a distinct smell of sulfur. This would fit into this picture that much of the material originally came from the crater area, which contains lots of sulfur deposits from fumaroles.
Stromboli volcano (Eolian Islands, Italy): new lava overflow on Sciara del Fuoco, which halted in meantime
giovedì 5 dic 2024 07:26 | Autore: martin
A thermal webcam captured lava emissions on the Sciara del Fuoco yesterday (image: INGV)
The National Institute of Geophysics and Volcanology (INGV) reported that a new lava started to descend on the upper Sciara del Fuoco flank at 01:09 local time on 4 December.
The spattering-fed lava overflow had been emerging from the North Crater area.
Meanwhile, the lava flow from the North Crater area ceased some time yesterday and is now no longer active.
The volcano's activity returned back to normal levels characterized with regular strombolian explosions.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 5 December 2024
Lava flow eruption ended, causing significant changes to Sciara del Fuoco's morphology
Update Fri 12 Jul 2024 21:04
The considerable chute at the Sciara del Fuoco deepened after the recent lava flow and collapse events. The lava platform visible as well (image: Tom Pfeiffer/VolcanoDiscovery)
The northern crater area widened following major events recently (image: Tom Pfeiffer/VolcanoDiscovery)
Tom Pfeiffer visited the volcano after the heightened activity over the past period.
He reported that the lava flow ceased probably last night or early morning. No lava activity visible.
Large parts of the northern crater terrace facing Sciara del Fuoco are missing due to recent collapse events that also created a deep canyon in the center of the Sciara inside which the lava flow had been. The large new triangular delta created.
Spectacular video of pyroclastic flow during major eruption yesterday
Update Fri 12 Jul 2024 02:47
The screenshot from the video of hot avalanches yesterday (image: LGS, experimental geophysical laboratory, The University of Florence)
An amazing video of the racing pyroclastic flow over Sciara del Fuoco, captured yesterday during the massive explosion, was recorded from the Punta Labronzo webcam located on the northeast side of the volcano.
The video portrays hot avalanches entering the sea, scooting across the sea surface, and sinking into the water. Dense ash clouds, separated from the flow (phoenix clouds), partially obscured the camera view.
Hot avalanches tumbling down over Sciara del Fuoco yesterday (source: LGS, experimental geophysical laboratory, The University of Florence)
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Stromboli volcano (Eolian Islands, Italy): above-average explosion generated lava flow, which halted in meantime
lunedì 4 nov 2024 06:29 | Autore: martin
The lava flow from the Northern Crater area in the evening of 2 October (image: INGV)
The National Institute of Geophysics and Volcanology (INGV) reported that a stronger-than-usual explosion took place from the Central-Southern Crater area on 2 October.
At 14:20 local time, the powerful eruption triggered glowing rockfall and debris avalanches rolling through the Sciara del Fuoco deep ravine created in early July this year.
Following the explosion, a new lava effusion from the North Crater area commenced to descend and had been constrained to the upper part of the Sciara del Fuoco slope.
Prior to the event at 14:18 local time, the seismic instrument detected a typical steep rise of a volcanic tremor indicating rapid magma batch movement towards the surface. The tremor increased temporarily to high-very-high values and later decreased again to medium-low values.
Meanwhile, the lava flow from the North Crater area ceased some time during the late night to Sunday and is now no longer active.
The volcano's activity returned back to normal levels characterized with regular strombolian explosions.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 4 November 2024
Impressive images of today's eruption
Update Thu 11 Jul 2024 13:16
The copious ash column and pyroclastic flow at Stromboli this afternoon as seen from Panarea Island (image: Il Mondo dei Terremoti)
The spectacular ash plume rising several hundreds of meters above the island and the hot avalanches (image: Il Mondo dei Terremoti)
There are several more images of today's massive explosion at Stromboli circulating in social media.
Now a strong smell of sulfur is felt in the port area.
The released ash plume rose about 4 km above the summit.
Massive explosion sends tall ash plume rising over island
Update Thu 11 Jul 2024 13:03
The major eruption from Stromboli this afternoon (image: Francesca Utano)
The towering pillar of dense ash and gas rising from Stromboli's crater (image: Francesca Utano)
Hot avalanches and phoenix clouds above Sciara del Fuoco at 12:23 local time (image: LGS, experimental geophysical laboratory, The University of Florence)
A sharp peak in tremor accompanied the eruption onset (image: LGS, experimental geophysical laboratory, The University of Florence)
A very strong explosion occurred from Stromboli volcano a short time ago, at around 14.10 local time. A massive ash plume rose from the summit area and drifted over the southeastern part of the island.
Friends on the island reported that while the explosion was not very loud, it generated and was felt as a strong shock wave that rattled doors in the village.
The eruption triggered a pyroclastic flow racing down Sciara del Fuoco and reached the sea surface. Collapsing parts of the flow generated lifted ash plumes, known as phoenix clouds.
The seismic signal shows a strong explosion that lasted approx 5-10 minutes. A spike of volcanic tremor was recorded as well.
Further details are not yet available. We expect to update when official sources report on the event.
Stromboli volcano (Italy): heavy rainfalls triggers mud flows, causing significant damage
sabato 19 ott 2024 17:26 | Autore: T
Torrential rainfalls during the last 24 hours generated strong mud flows by mixing with the loose volcanic ash soils on the flanks of the island.
Significant damage has occurred in several places as a result. Most severely hit was the village of Ginostra.
New lava delta continues to grow, lava forms steam-rich emissions at contact with water
Update Wed 10 Jul 2024 05:35
Copious steam emissions from the interaction of the lava and the external water, so-called haze (image: AIV - Associazione Italiana di Vulcanologia)
The new lava delta as seen from Ginostra village (image: INGV)
The effusive eruption at the volcano continues.
The lava on the Sciara del Fuoco continues to keep the flow active and feeds the new lava delta at the sea entry.
As the lava interacts with water, white abundant steam emissions are generated, known as laze (lava haze).
Stromboli volcano (Eolian Islands, Italy): another phase of lava overflow
giovedì 10 ott 2024 05:10 | Autore: martin
A thermal webcam captured lava emissions on the Sciara del Fuoco yesterday at 13:54 local time (image: INGV)
The National Institute of Geophysics and Volcanology (INGV) reported that another batch of lava flow started to descend on the Sciara del Fuoco flank yesterday afternoon.
The spattering-fed lava overflow has been emerging from the North Crater area, the same location as at previous effusive eruptions over the past week.
Volcanic tremor remains high.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 10 October 2024
Stromboli volcano (Eolian Islands, Italy): yet another small lava overflow on Sciara del Fuoco
mercoledì 9 ott 2024 05:04 | Autore: martin
Thermal webcam shows new emissions of the lava on Sciara del Fuoco at 17:27 local time yesterday (image: INGV)
Strombolian activity at the volcano started to pick up in the late afternoon yesterday, the National Institute of Geophysics and Volcanology (INGV) reported.
Following an intensifying spattering in the North Crater area at 16:50 local time, a new lava flow has been triggered on Sciara del Fuoco.
Seismic gauges registered a typical sharp rise in volcanic tremor at 16:33 local time from medium to high levels.
Regarding ground deformation, GNSS stations haven't shown significant variations.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 9 October 2024
Stromboli volcano (Eolian Islands, Italy): new lava flow lasted almost 24 hours
mercoledì 2 ott 2024 14:31 | Autore: martin
The latest lava flow on the Stromboli's Sciara del Fuoco flank at 06:13 local time yesterday (image: LGS, Experimental Geophysical Laboratory, The University of Florence)
The intense spattering in the Northern Crater area at 04:10 local time yesterday (image: LGS, Experimental Geophysical Laboratory, The University of Florence)
The National Institute of Geophysics and Volcanology (INGV) reported that a new lava effusion began from the North Crater area vents at 00:45 local time on 1 October.
Following an increase rise of strombolian activity, characterized by intense spattering at the summit, the lava extended beyond the crater terrace and triggered a small overflow onto the upper Sciara del Fuoco. The effusive eruption was accompanied by landslides and rockfall avalanches as a result of collapsing parts of the lava flow front and debris material or both, reaching the sea.
Prior to the eruption, a significant (and typical also) precursor of a gradually rising amplitude of volcanic tremor was monitored at about 12:15 local time on 30 September, which increased to very high values.
However, the elevated effusive eruption ceased some time in the early hours of 2 October, meaning the lava flow eruption lasted approx. 24 hours.
Currently, the explosive activity is low, with only minor spattering occurring in the Northern Crater area. Additionally, occasional landslides of material are observed along the Sciara del Fuoco. Seismically, the average tremor amplitude remains at a normal level.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 1 October 2024
Stromboli volcano (Eolian Islands, Italy): mild strombolian eruptions continue
domenica 15 set 2024 19:58 | Autore: martin
The brown dust resulted from debris and lava bombs tumbling down the Sciara del Fuoco flank (image: Martin Kelko/VolcanoDiscovery)
The North Crater area this afternoon (image: Martin Kelko/VolcanoDiscovery)
The new lava delta which formed during the effusive eruption in mid-July (image: Martin Kelko/VolcanoDiscovery)
The explosive eruption of the volcano persists.
Minor strombolian-sized explosions, in combination with the weak spattering and the near-constant degassing, continued from the North Crater area at roughly regular intervals 3-4 per hour during this afternoon.
A brown dust could be seen rising through the Sciara del Fuoco deep canyon, which formed during the major eruption in mid-July. The dust resulted from ejected lava bombs and debris rolling down the Sciara del Fuoco and settling in the water.
Stromboli volcano (Eolian Islands, Italy): new lava flow
domenica 1 set 2024 03:41 | Autore: martin
The new lava flow eruption at Sciara del Fuoco early morning on 31 August (image: Geól. Sergio Almazán/x.com)
A new lava flow started to emerge from the Southern crater area at about 03:00 local time last night.
The lava has been descending over the Sciara del Fuoco flank to an altitude of about 350-400 meters yesterday afternoon. The lava came out shortly after a vigorous spattering activity.
Simultaneously, usual strombolian explosions continue to occur from the Northern crater area.
The seismic instrument detects volcanic tremor at average levels without any significant amplitudes.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 1 September 2024
Stromboli volcano (Eolian Islands, Italy): new lava on Sciara del Fuoco
venerdì 16 ago 2024 02:49 | Autore: martin
Thermal view of the Sciara showing the newly formed lava (image: INGV)
The activity at the volcano started to increase yesterday afternoon, according to a report from the National Institute of Geophysics and Volcanology (INGV).
At about 16:45 local time, a new lava flow resulted from intense spattering at the Northern crater area. By 21:00 local time yesterday, the lava on Sciara del Fuoco had reached an altitude of about 400-500 meters. The effusive eruption has been associated with the continuous explosive activity from the crater.
A steep rise in volcanic tremor has also been detected, reaching very high levels since 12:00 local time.
Source: Istituto Nazionale di Geofisica e Vulcanologia volcano activity update 16 August 2024
Stromboli volcano (Eolian Islands, Italy): aftermath following strong eruptive episode captured through Synthetic Aperture Radar
mercoledì 24 lug 2024 06:16 | Autore: martin
The lava flow and debris avalanches deepened and partially filled the chute in Sciara del Fuoco that, in turn, created the new lava delta beyond the shoreline by accumulating and extending new lava material (image: Sentinel-1)
In the attached Synthetic Aperture Radar (SAR) animation provided by Sentinel-1, considerable morphological changes on Sciara del Fuoco are detectable following the recent elevated explosive-effusive eruptive period in early-to-mid July.
Significant portions of the northern crater terrace facing the Sciara del Fuoco have disappeared due to recent collapse events, which also formed a deep canyon in the center of the Sciara where the lava flow had been. This flow expanded the shoreline, creating a large new triangular delta.
New images of the lava flow entering the sea
Update Tue 09 Jul 2024 14:05
The new lava delta forming at the Sciara del Fuoco's coast (image: LGS)
View of the lava flow from its vent at around 500 m elevation down to the coast (image: LGS)
The Laboratory of Experimental Geophysics (LGS, University of Florence)
published a series of photographs (facebook) taken yesterday that show the active lava flow reaching the sea at Stromboli volcano.
In addition, several videos were posted:
Update Mon 08 Jul 2024 20:55
The lava flow at night seen via the webcam at Punta Labronzo (image: LGS)
Lava flow into the sea remains active
Update Mon 08 Jul 2024 06:21
The lava flow at Stromboli volcano continues to reach the sea (image: LGS webcam)
Activity remains more or less unchanged. The lava flow remains active and reaches the sea at the Sciara del Fuoco's coast.
Video from last night:
Stromboli volcano (Italy): lava flow continues, intensifies
domenica 7 lug 2024 16:58 | Autore: T
View of the area of the effusive vent at the Sciara del Fuoco of Stromboli (image: INGV webcam at 400 m elevation)
Thermal view of the Sciara showing the newly formed lava delta (image: INGV thermal webcam)
The lava flow remains active and reaches the sea where it is building a small lava delta at the shore of the Sciara del Fuoco.
According to the latest update from the volcano observatory in Catania (INGV), the effusive activity, produced by two vents at an altitude of 485 m above sea level, intensified around noon.
Small explosions are occurring when incandescent lava enters the sea and a steam cloud is formed there. Lava blocks produce frequent rockfalls on the Sciara as well.
During the past 24 hours, no strombolian-type explosions or significant degassing pulses were recorded from the summit vent; this is typical for flank eruptions such as the one occurring now: most magma and the gasses contained in it leaves the system from the flank vent, without reaching the usual summit vents.
Stromboli volcano (Italy): lava flow effusion resumes
sabato 6 lug 2024 15:26 | Autore: T
View of the Sciara del Fuoco this afternoon where the lava flow is again active (image: LGS)
The volcano institute in Catania (INGV Catania) reported that weak effusive (lava flow) activity has resumed from the vent previously located at 510 m above sea level on the Sciara del Fuoco. The vent migrated a bit downhill and is now at 485 m above sea level while the lava flow front had been about 200 m above the coast in the early afternoon. Blocks detaching from the lava front often roll towards the coastline and reach the sea.
Stromboli volcano (Italy): activity back to normal
sabato 6 lug 2024 12:05 | Autore: T
The Sciara del Fuoco of Stromboli this morning; no lava flow is visible (image: LGS)
Seismic plot of the station at the Roccette at around 600 m elevation (image: LGS)
The activity appears to have returned to normal levels (similar to as it was before the sudden and intense magma surge on 4 July). The lava flow on the Sciara del Fuoco is no longer active this morning, at least judging from webcam imagery.
The current seismic signal also indicates frequent rockfalls.
According to an update from INGV, there are no signs of strombolian explosions.
Incredible video shows opening of lateral vent at Stromboli
Update Fri 05 Jul 2024 15:05
A large glowing lava boulder is pushed outwards from the area where the vent opened on the slope of the Sciara (image: INGV)
INGV published an incredible video showing the opening of the effusive vent at around 700 m elevation yesterday afternoon: as magma pushed itself outwards laterally, a very large block of glowing hot lava was pushed or almost thrown outwards onto the steep slope, where it quickly disintegrated into a turbulent hot block and ash flow (pyroclastic flow) racing down towards the coast:
Lava flow decreases, maybe ceases
Update Fri 05 Jul 2024 13:52
Judging from the latest available imagery and the latest
report of INGV Catania, effusive activity is likely ceasing although it writes that the flow from the vent at 510 m elevation is still weakly alimented.
Lava flow activity continues, series of small pyroclastic flows around noon
Update Fri 05 Jul 2024 11:31
A series of small pyroclastic flows occurred at 12:19, 12:27, 12:30, and 12:33 local time. The flows descended the Sciara del Fuoco and reached the sea.
As of noon, the lava flow from an effusive vent at 510 m elevation remains well alimented, INGV reported. Tremor has been at moderate levels, spiking only briefly while the mentioned pyroclastic flows were emplaced. No significant ground deformation has been observed.
Lava flow continues at low intensity from vent at 600 m elevation
Update Fri 05 Jul 2024 10:59
Thermal view of the Sciara seen from the NW (Ginostra side of the Sciara) showing the front of the lava flow at the coast (image: INGV thermal webcam)
According to the last bulletin of Italy's National Institute of Geophysics and Volcanology (INGV), Catania section, the lava flow continues at Stromboli with reduced intensity. It is being emitted from a vent at about 600 m above sea level on the Sciara del Fuoco.
The activity creates also rockfalls and episodic low-energy pyroclastic flows that reach the sea.
The average amplitude of the volcanic tremor remained at high or very high values until about 01:00 UTC, and then moved, with oscillations, to the range of average values around 04:00 UTC, where it currently remains.
Source:
2024-07-05 08:59:10, INVIO COMUNICATO GENERICO DI ATTIVITà VULCANICA (INGV Catania, pdf)
Activity calms down
Update Fri 05 Jul 2024 06:09
Thermal view of the Sciara seen from the NW (Ginostra side of the Sciara) still showing hot material at the coast (image: INGV thermal webcam)
Seismic drum-plot of a station at Stromboli (image: LGS)
After yesterday's very intense eruptive phase involving a new lava flow and numerous hot avalanches (pyroclastic flows) on the Sciara del Fuoco, the activity of the volcano has gradually calmed down over the night and early morning, as seen in the seismic signal and other parameters.
While most webcams are not working or not publicly available at the moment, one that is available still shows a strong hot spot at the coast where a new small lava delta has formed yesterday. It is however unclear whether the lava flow is still active or whether the seen hot area at the coast is the now cooling small new lava delta that has formed.
Another impressive video showing the descend of a pyroclastic flow into and over the sea yesterday afternoon was shared by the volcano observatory INGV in Catania:
Stromboli volcano (Italy): dramatic footage of pyroclastic flow over the sea today
giovedì 4 lug 2024 22:16 | Autore: T
Large pyroclastic flow from Stromboli's Sciara del Fuoco today (image: INGV / X)
INGV published a spectacular video showing a large pyroclastic flow (hot turbulent avalanche of fragmented lava mixed with air) from Stromboli traveling over the sea for hundreds of meters beyond the shore after having descended the Sciara del Fuoco:
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View embedded content from X/TwitterStromboli volcano (Italy): major explosion from SW crater area preceeded today's lava eruption
giovedì 4 lug 2024 20:09 | Autore: T
Classification of recent explosions at Stromboli (the lower-left area are the normal-range sized strombolian events marked as gray circles; the larger-than-average or major explosions are in the center, and the most powerful explosions, often referred to as paroxysms are in the upper right area of the diagram (image: LGS)
The events today at Stromboli also involved a major explosion from the SW crater area that occurred at 14:11 local time, a post of the Experimental Geophysics Laboratory (LGS) of the University of Florence indicates.
The event involved a seismic signal in the long-period band with a maximum amplitude of 2.1x10-5 m (in displacement) and a ground deformation of about 1.22 microradians (recorded at the OHO tiltmeter). The explosion generated an infrasonic and acoustic pressure equal to 15.11 Pa.
The classification as a major explosion is based on the combination of generated seismic signal (reflecting the pressure waves of the explosion as indication of its power) and short-lived ground deformation as indicator of the involved volume.
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Stromboli volcano (Italy): Lava flow on Sciara del Fuoco continues
giovedì 4 lug 2024 19:56 | Autore: T
View of the forming lava delta at Stromboli (image: INGV thermal webcam)
Seismic plot looking like an abstract art work... (image: LGS)
Most webcams seem to be out of order or are not easily accessible, but the eruption continues as can be seen from the functioning thermal webcam at the Sciara del Fuoco. It seems that a small lava delta has already started to form at the shore.
The seismic signal is saturated with noise from rockfalls and lava avalanches associated with the lava flow on the steep slope.
Stromboli volcano (Italy): impressions of today's new eruption
giovedì 4 lug 2024 18:57 | Autore: T
The lava flow as well as rockfalls and avalanches reaching the sea at the Sciara del Fuoco of Stromboli island today (image: Ando Wegner)
Ash plumes rising over the island (image: Francesca Utano)
Ash plumes over Stromboli seen from the church of S. Vincenzo (image: Francesca Utano)
Our friends on Stromboli shared a few impressions from today's eruption on the Sciara del Fuoco:
Stromboli volcano (Italy): lava flow reaches the sea
giovedì 4 lug 2024 17:02 | Autore: T
Stromboli's new lava flow in the afternoon of 4 July 2024 (image: INGV Vulcani / X)
At 18:18 local time, a pyroclastic flow - a turbulent avalanche of hot fragmented lava - occurred on the Sciara del Fuoco, quickly descended to the coast and traveled several hundred meters over the sea from the shoreline.
In the meanwhile, the latest observations confirm that the lava flow is indeed from a new fissure vent located below the crater terrace and that it already has reached the sea by 17:30 local time, where it is now going to build up a new lava delta.
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Stromboli volcano (Italy): new lava flow on Sciara del Fuoco from vent at 700 m elevation
giovedì 4 lug 2024 16:21 | Autore: T
The new lava flow on Stromboli that started 4 July 2024 afternoon (image: INGV Catania)
Volcanic tremor at Stromboli (image: LGS)
The volcano observatory reported that at 16:10 local time a new lava flow has been observed emerging from a new vent at 700m beneath the northern crater area. The lava flow is descending the Sciara del Fuoco and producing (small) pyroclastic flows.
It is still a bit unclear whether the flow formed as overflow from the summit vents, as was the case of the many short-lived lava flows in the past few years, or indeed from a new fissure vent located beneath the crater area. In the latter case, it would mean that it can be considered a lateral eruption from a new sub-terminal vent, and chances would be that the lava flow might last several days if not more. The last time a true lateral eruption on the Sciara occurred in August 2014 and lasted approximately 10 days.
Volcanic tremor is very high, suggesting a significant rate of lava effusion. Whether or not the lava flow has already reached the sea is currently unclear.
We will update our news section as soon as more information becomes available.
Video published by INGV Catania:
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View embedded content from X/TwitterStromboli volcano (Italy): sudden increase of activity, large landslides on Sciara del Fuoco
giovedì 4 lug 2024 05:08 | Autore: T
Landslide on Stromboli's Sciara del Fuoco last evening (image: LGS webcam)
Spike of volcanic tremor associated with the sudden increase of activity (image: LGS)
Last evening, an increase of lava spattering from the northern crater area occurred from 18:43 local time, accompanied by a spike in volcanic tremor. This led to the partial collapse of the active cone (hornito) located at the northeastern rim of the crater area directly above the Sciara del Fuoco, where intense landslides formed that reached the sea and generated large plumes of dust and ash.
Later, a small, short-lived lava flow formed from the vent area onto the uppermost part of the Sciara, before activity returned to similar levels as before the event. Overall, Stromboli's activity remains relatively high.
Video of the lava flow associated with the surge of magma:
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