Bezymyanny volcano has erupted, spewing ash 12 kilometers into the sky.
Published on Jul 25, 2024 (0:13)
Published on Jul 25, 2024 (0:13)
Volcanoes Erupting All Over
- Thread starter Laura
- Start date
XPan
The Living Force
Etna, Sicily
4 Aug 2024
Fresh out of the Oven
The eruption at Etna is still ongoing albeit starts winding down, as the ash plume now points straight towards the south. During the past 1-2 weeks, Etna has shown increased Strombolian activity at the top, so naturally it was speculated if the mountain perhaps would or could prepare for another (5th) Paroxysm after the latter happened 12 days ago, and previously 8 days earlier.
Indeed it did. Big times, starting at 03.30 middle European summer time and peaking after sunrise with a huge, broad column of ash up to 10.000 meter height. My husband translated to me, that the Fontanarossa airport in Catania, closed airspace "B1", and now restricts airplane movements to max 6 arriving planes per hour. And I noticed while the first planes took off towards the east - towards the ash cloud (which earlier spread towards southeast (Ionian Sea), they just now changed the direction how to take off, with a light tailwind flying towards west instead.
Here some photos i collected via en open Facebook volcano channel - with extreme compressed images, so there really shouldn't be any delay or problem in loading those ! The quality however will be a lot less.
PS: The last photo to the right, shows the typical Strombolian activity that has been going on at Etna during the past week.
4 Aug 2024
Fresh out of the Oven
The eruption at Etna is still ongoing albeit starts winding down, as the ash plume now points straight towards the south. During the past 1-2 weeks, Etna has shown increased Strombolian activity at the top, so naturally it was speculated if the mountain perhaps would or could prepare for another (5th) Paroxysm after the latter happened 12 days ago, and previously 8 days earlier.
Indeed it did. Big times, starting at 03.30 middle European summer time and peaking after sunrise with a huge, broad column of ash up to 10.000 meter height. My husband translated to me, that the Fontanarossa airport in Catania, closed airspace "B1", and now restricts airplane movements to max 6 arriving planes per hour. And I noticed while the first planes took off towards the east - towards the ash cloud (which earlier spread towards southeast (Ionian Sea), they just now changed the direction how to take off, with a light tailwind flying towards west instead.
Here some photos i collected via en open Facebook volcano channel - with extreme compressed images, so there really shouldn't be any delay or problem in loading those ! The quality however will be a lot less.
PS: The last photo to the right, shows the typical Strombolian activity that has been going on at Etna during the past week.
XPan
The Living Force
Etna, Sicily
4 Aug 2024
Well, it didn't take long time; German Vulkane.net already brought out an article regarding the latest paroxysm at Etna. Here the text as follow:
www.vulkane.net
Etna in Sicily produces 5th paroxysm in a row from the Voragine
- volcanic ash at an altitude of 10,000 m
The Sicilian volcano Etna began its 5th paroxysmal eruption in a row tonight. The eruption had been expected by volcano observers for several days, even though it could not be predicted scientifically. The pause interval to the previous paroxysm was 12 days, which is significantly longer than the previous interval of 8 days. However, it is questionable whether this already indicates a trend.
The paroxysm was preceded by a phase of several days with strombolian eruptions
which intensified in the hours before the paroxysm and occurred at increasingly shorter intervals. Volcano observers were already expecting a paroxysm the night before because the Strombolian eruptions were quite strong: Their detonations could be heard from afar. However, the main phase of the paroxysmal eruption was delayed and only started tonight at around 1:20 UTC (CEST +2 hours), when the tremor began to rise rapidly and shot upwards.
The Strombolian eruptions increased to a lava fountain that may have exceeded 1000 m at its peak. Both INGV and VAAC Tolouse issued reports and warned of the paroxysm. Accordingly, volcanic ash rose higher than 10,000 m and endangered not only aircraft approaching Catania, but also aircraft at cruising altitude. The ash cloud spread over a large area to the south-east of the volcano and extended far beyond the Ionian Sea. Massive ashfall occurred (and continues to occur) in the towns in the south-east of Mount Etna.
Volcano observers on site described the eruption as the most violent of the series, although these are of course subjective assessments.
As reported by the INGV, the tremor reached very high levels at around 02:30 UTC. The focus of the seismic activity was below the Voragine crater at an altitude of 2800 to 2900 meters above sea level.
In addition, the infrasound activity showed a rapid and significant increase, with the events being limited to the Voragine crater and of high amplitude.
The tilt network registered a slight visible variation from 02:18 UTC, in particular, with a quantifiable change of about 0.10 mrad detected. The DRUV master station showed a variation of about 10 nano-strain. However, no significant changes were observed in the GNSS data.
Tremor has dropped slightly and is moving sideways this morning. It looks like the eruption wants to continue a little longer. The action can be observed on the livecams as the clouds clear.
END OF ARTICLE
4 Aug 2024
Well, it didn't take long time; German Vulkane.net already brought out an article regarding the latest paroxysm at Etna. Here the text as follow:
Ätna: 5. Paroxysmus aus der Voragine - Vulkane Net Newsblog
Ätna auf Sizilien erzeugt 5. Paroxysmus aus der Voragine in Folge. Vulkanasche in 10.000 m Höhe detektiert. Es ebsteht Gefahr für Flugverkehr.
www.vulkane.net
Etna in Sicily produces 5th paroxysm in a row from the Voragine
- volcanic ash at an altitude of 10,000 m
The Sicilian volcano Etna began its 5th paroxysmal eruption in a row tonight. The eruption had been expected by volcano observers for several days, even though it could not be predicted scientifically. The pause interval to the previous paroxysm was 12 days, which is significantly longer than the previous interval of 8 days. However, it is questionable whether this already indicates a trend.
The paroxysm was preceded by a phase of several days with strombolian eruptions
which intensified in the hours before the paroxysm and occurred at increasingly shorter intervals. Volcano observers were already expecting a paroxysm the night before because the Strombolian eruptions were quite strong: Their detonations could be heard from afar. However, the main phase of the paroxysmal eruption was delayed and only started tonight at around 1:20 UTC (CEST +2 hours), when the tremor began to rise rapidly and shot upwards.
The Strombolian eruptions increased to a lava fountain that may have exceeded 1000 m at its peak. Both INGV and VAAC Tolouse issued reports and warned of the paroxysm. Accordingly, volcanic ash rose higher than 10,000 m and endangered not only aircraft approaching Catania, but also aircraft at cruising altitude. The ash cloud spread over a large area to the south-east of the volcano and extended far beyond the Ionian Sea. Massive ashfall occurred (and continues to occur) in the towns in the south-east of Mount Etna.
Volcano observers on site described the eruption as the most violent of the series, although these are of course subjective assessments.
As reported by the INGV, the tremor reached very high levels at around 02:30 UTC. The focus of the seismic activity was below the Voragine crater at an altitude of 2800 to 2900 meters above sea level.
In addition, the infrasound activity showed a rapid and significant increase, with the events being limited to the Voragine crater and of high amplitude.
The tilt network registered a slight visible variation from 02:18 UTC, in particular, with a quantifiable change of about 0.10 mrad detected. The DRUV master station showed a variation of about 10 nano-strain. However, no significant changes were observed in the GNSS data.
Tremor has dropped slightly and is moving sideways this morning. It looks like the eruption wants to continue a little longer. The action can be observed on the livecams as the clouds clear.
END OF ARTICLE
Shallow earthquakes near active volcanoes during the past 48 hours (update 18:48, Sunday, 4 Aug 2024)
Map of earthquakes near active volcanoes
www.volcanodiscovery.com
So after the new #eruzione of Etna #vulcano
XPan
The Living Force
Wow that is a lot, and much coarser than i ever seen videos from in recent years.
Perhaps this one comes closer to the 2002-2003 eruption, which was a large one (ongoing over longer time), with copious amounts of ash raining down over Catania and the northern suburbs especially, created major problems for the people living there. Another thing is, that ash + rain, makes in particularly narrower and at times steep streets in the northern suburbs of Catania slippery like soap.
XPan
The Living Force
Etna, Sicily
15 Aug 2024
Oh yes. It was time again;
Etna spewed its 6th paroxysm around midnight - which lead to heavy ashfall in the southern outer suburbs of Catania to the north, and lighter ashfall also over Catania, as well over the villages to the east. Apparently the ashcloud around 00.30 in satellite images, started to fly towards east, but then the winds changed to the SSW. I could see how there where two long streaks of ashclouds visible at sunrise. The latter change in wind direction led to the total closure of Catania's airport Fontanarossa, (from early morning until 18.00 i believe) as the runway also got ashfall.
As usual, German Vulkane.net reported about it as follow:
www.vulkane.net
Strombolian activity on Mount Etna increased at night to the 6th paroxysm from the Voragine
Last night, the 6th Voragine paroxysm in succession manifested itself on Mount Etna in Sicily. The highest volcano in geological Europe began to increase its activity in the late afternoon. I reported on the events late in the evening, but after the editorial deadline it was likely that another paroxysm was about to start, but it was not yet 100% certain that all the symptoms of this type of eruption would actually develop. Short interruptions in the steep rise of the tremor provided a reason for doubt.
During earlier paroxysms from the south-east crater, I experienced Etna starting a paroxysm, but then breaking off and having a period of sustained Strombolian instead. It has also been scientifically proven that the tremor had to exceed a certain threshold value in the lower red area in order to definitely turn into a paroxysm. As long as this threshold is not exceeded, the activity can decrease again.
However, the paroxysm was unstoppable
last night and finally started with a nice lava fountain. The peak of the eruption was not reached until after midnight. The VAAC reported volcanic ash at an altitude of a good 9000 meters. The wind was blowing at different heights in two different directions, so that volcanic ash drifted to the southeast and southwest. The latter ash cloud transported the tephra towards Catania, where the airport was exposed to massive ashfall and had to be closed. Flight operations are expected to be suspended until 6 p.m. today.
The ash cloud, which drifted in a south-easterly direction, caused heavy ashfall in the villages of Piano Vetore, Nicolosi and Ragalna.
According to the INGV
a lava overflow occurred from the western rim of the Bocca Nuova crater and a lava stream flowed over the outer flank of the crater. The volcano thus produced all the phenomena typical of a paroxysm. Particularly strong paroxysms also generate pyroclastic flows, but these have so far been absent in the current series.
The locations of the tremor sources were in the area of the Voragine at an altitude of around 3000 meters. The clinometer network recorded fluctuations at the CPN and PDN summit stations, in the order of 1.5 and 0.4 µrad respectively. There was therefore a steepening of the volcano flank as a result of the passage of a magma body.
END OF ARTICLE
by Weronika Grudzien (to the right) and the two images above
all images between 40 and 52 kb
15 Aug 2024
Oh yes. It was time again;
Etna spewed its 6th paroxysm around midnight - which lead to heavy ashfall in the southern outer suburbs of Catania to the north, and lighter ashfall also over Catania, as well over the villages to the east. Apparently the ashcloud around 00.30 in satellite images, started to fly towards east, but then the winds changed to the SSW. I could see how there where two long streaks of ashclouds visible at sunrise. The latter change in wind direction led to the total closure of Catania's airport Fontanarossa, (from early morning until 18.00 i believe) as the runway also got ashfall.
As usual, German Vulkane.net reported about it as follow:
Ätna: Das war der 6. Paroxysmus - Vulkane Net Newsblog
Strombolianische Aktivität am Ätna steigerte sich nachts zum 6. Paroxysmus aus der Voragine Am Ätna auf Sizilien manifestierte sich gestern Nacht der 6. Voragine-Paroxysmus in Folge. Bereits am Spätnachmittag fing der höchste Vulkan des geologischen Europas an, seine Aktivität zu steigern. Am...
www.vulkane.net
Strombolian activity on Mount Etna increased at night to the 6th paroxysm from the Voragine
Last night, the 6th Voragine paroxysm in succession manifested itself on Mount Etna in Sicily. The highest volcano in geological Europe began to increase its activity in the late afternoon. I reported on the events late in the evening, but after the editorial deadline it was likely that another paroxysm was about to start, but it was not yet 100% certain that all the symptoms of this type of eruption would actually develop. Short interruptions in the steep rise of the tremor provided a reason for doubt.
During earlier paroxysms from the south-east crater, I experienced Etna starting a paroxysm, but then breaking off and having a period of sustained Strombolian instead. It has also been scientifically proven that the tremor had to exceed a certain threshold value in the lower red area in order to definitely turn into a paroxysm. As long as this threshold is not exceeded, the activity can decrease again.
However, the paroxysm was unstoppable
last night and finally started with a nice lava fountain. The peak of the eruption was not reached until after midnight. The VAAC reported volcanic ash at an altitude of a good 9000 meters. The wind was blowing at different heights in two different directions, so that volcanic ash drifted to the southeast and southwest. The latter ash cloud transported the tephra towards Catania, where the airport was exposed to massive ashfall and had to be closed. Flight operations are expected to be suspended until 6 p.m. today.
The ash cloud, which drifted in a south-easterly direction, caused heavy ashfall in the villages of Piano Vetore, Nicolosi and Ragalna.
According to the INGV
a lava overflow occurred from the western rim of the Bocca Nuova crater and a lava stream flowed over the outer flank of the crater. The volcano thus produced all the phenomena typical of a paroxysm. Particularly strong paroxysms also generate pyroclastic flows, but these have so far been absent in the current series.
The locations of the tremor sources were in the area of the Voragine at an altitude of around 3000 meters. The clinometer network recorded fluctuations at the CPN and PDN summit stations, in the order of 1.5 and 0.4 µrad respectively. There was therefore a steepening of the volcano flank as a result of the passage of a magma body.
END OF ARTICLE
by Weronika Grudzien (to the right) and the two images above
all images between 40 and 52 kb
meadow_wind
Jedi Master
I've always wondered if the "3 days of darkness" mentioned by many seers, including Padre Pio, would be related to a volcanic eruption, or is more of a parabola. The warnings included things such as "stay home, don't go outdoors, close your doors and windows, light with candles, demons will roam the earth during 3 days and night, etc". We know that demons might mean window fallers.
meadow_wind
Jedi Master
They are hilarious! Thanks for sharing, you made my day
XPan
The Living Force
Sundhunúkur / North of Grindavik | Iceland
26 Aug 2024
via Vulkane.net
www.vulkane.net
Iceland's volcanic eruption continues and provides spectacular light show along with Northern Lights
The sixth consecutive eruption at Sundhunúkur delivered a breathtaking light show last night, with glowing lava and the Northern Lights competing for the attention of spectators and photographers. Our club members Jochen and Sandra are still on site and took spectacular pictures of the light show.
As mentioned yesterday, it currently seems to be tolerated by the safety authorities that onlookers can get right up to the lava front and parking on the roadside of Grindavikurvegur also seems to be accepted, although there are no official announcements that access to the eruption site is open. It is relatively easy to get to the broadly fanned out lava front, which is located about 3 kilometers from the eruption center.
Reykjanesbraut Road (Keflavik Airport to Reykjavik)
The lava front is still about 2 kilometers away from the road. If the lava flow does not slow down significantly in the next few days, it could also become critical for the main road Reykjanesbraut, which runs between Reykjavik and Keflavik Airport.
What the police will not tolerate, however, are onlookers who simply stop on the Reykjanesbraut highway and provoke traffic jams. Such behavior is considered life-threatening and reckless, and the police patrol continuously to keep traffic flowing.
Amazingly, earthquakes continue to occur along the Sundhnúkur crater series. The subsidence continues and is stronger than in previous eruptions. According to IMO scientist Magnús Tumi, the melt comes from the same reservoir as the previous eruptions. The fact that the fissure opened so far north on Kálfellsheiði, northeast of Stóra-Skógfell, comes as no surprise to him. It was expected.
This statement is somewhat at odds with earlier statements when IMO scientists feared that the next eruption would occur closer to Grindavik in the south. One person who said from the beginning that there was no danger near Grindavik was the volcanologist Þorvalður Þórðarson. The wide spread to the north corresponds to the behavior of a series of eruptions 2500 years ago, when eruptions last occurred here, Þorvalður said in a Visir interview. The volcanologist suspects that something may have changed in the underground conveyor system when a magnitude 4.1 earthquake occurred on August 22. If further eruptions move even further north, settlements near the capital could be endangered.
Incidentally, the first results of the lava sample analyses have just been published, but more on that later.
www.vulkane.net
Analysis of the lava samples
This morning I already mentioned that the first analysis results of the lava samples have been published. These were carried out by Reykjavik University and essentially show a chemism of the lava similar to the last two eruptions in March and May: The MgO concentration in the samples is between 5 and 7%, and the K2O/TiO2 ratio in the basaltic glass varies between 0.11 and 0.16, similar to the May and June eruptions. However, this ratio is significantly lower than in previous outbreaks, where it was between 0.21 and 0.23.
This indicates that magma with a similar chemical composition has accumulated in the magma reservoir under Svartsengi since the end of April. Petrologically, the basaltic samples strongly resemble those of the eruptions at Sundhnúksgíga since December 2023 and contain vesicular glass with plagioclase, olivine and augite veins. The researchers conclude from the analyses that the magma formed in a deep reservoir.
The samples also show great similarities with centuries-old lava samples, suggesting that similar processes are at work as in earlier eruptive phases on Reykjanes. Ultimately, this confirms the assumption that an eruption phase lasting several decades could be imminent, which could also spread to other fissure systems and endanger further infrastructure.
END OF ARTICLE
26 Aug 2024
via Vulkane.net
Island: Lava mit Polarlichtern am 29.08.24 - Vulkane Net Newsblog
Vulkanausbruch auf Island hält an und bietet zusammen mit Nordlichtern eine spektakuläre Lichtshow zwischen Himmel und Hölle.
www.vulkane.net
Iceland's volcanic eruption continues and provides spectacular light show along with Northern Lights
The sixth consecutive eruption at Sundhunúkur delivered a breathtaking light show last night, with glowing lava and the Northern Lights competing for the attention of spectators and photographers. Our club members Jochen and Sandra are still on site and took spectacular pictures of the light show.
As mentioned yesterday, it currently seems to be tolerated by the safety authorities that onlookers can get right up to the lava front and parking on the roadside of Grindavikurvegur also seems to be accepted, although there are no official announcements that access to the eruption site is open. It is relatively easy to get to the broadly fanned out lava front, which is located about 3 kilometers from the eruption center.
Reykjanesbraut Road (Keflavik Airport to Reykjavik)
The lava front is still about 2 kilometers away from the road. If the lava flow does not slow down significantly in the next few days, it could also become critical for the main road Reykjanesbraut, which runs between Reykjavik and Keflavik Airport.
What the police will not tolerate, however, are onlookers who simply stop on the Reykjanesbraut highway and provoke traffic jams. Such behavior is considered life-threatening and reckless, and the police patrol continuously to keep traffic flowing.
Amazingly, earthquakes continue to occur along the Sundhnúkur crater series. The subsidence continues and is stronger than in previous eruptions. According to IMO scientist Magnús Tumi, the melt comes from the same reservoir as the previous eruptions. The fact that the fissure opened so far north on Kálfellsheiði, northeast of Stóra-Skógfell, comes as no surprise to him. It was expected.
This statement is somewhat at odds with earlier statements when IMO scientists feared that the next eruption would occur closer to Grindavik in the south. One person who said from the beginning that there was no danger near Grindavik was the volcanologist Þorvalður Þórðarson. The wide spread to the north corresponds to the behavior of a series of eruptions 2500 years ago, when eruptions last occurred here, Þorvalður said in a Visir interview. The volcanologist suspects that something may have changed in the underground conveyor system when a magnitude 4.1 earthquake occurred on August 22. If further eruptions move even further north, settlements near the capital could be endangered.
Incidentally, the first results of the lava sample analyses have just been published, but more on that later.
Island: Erdbeben bei Sundhnúkur und Fagradalsfjall - Vulkane Net Newsblog
Erhöhte Erdbebenaktivität bei Sundhnukur und Fagradalsfjall auf Island detektiert. Außerdem wurden Lavaproben analysiert.
www.vulkane.net
Analysis of the lava samples
This morning I already mentioned that the first analysis results of the lava samples have been published. These were carried out by Reykjavik University and essentially show a chemism of the lava similar to the last two eruptions in March and May: The MgO concentration in the samples is between 5 and 7%, and the K2O/TiO2 ratio in the basaltic glass varies between 0.11 and 0.16, similar to the May and June eruptions. However, this ratio is significantly lower than in previous outbreaks, where it was between 0.21 and 0.23.
This indicates that magma with a similar chemical composition has accumulated in the magma reservoir under Svartsengi since the end of April. Petrologically, the basaltic samples strongly resemble those of the eruptions at Sundhnúksgíga since December 2023 and contain vesicular glass with plagioclase, olivine and augite veins. The researchers conclude from the analyses that the magma formed in a deep reservoir.
The samples also show great similarities with centuries-old lava samples, suggesting that similar processes are at work as in earlier eruptive phases on Reykjanes. Ultimately, this confirms the assumption that an eruption phase lasting several decades could be imminent, which could also spread to other fissure systems and endanger further infrastructure.
END OF ARTICLE
XPan
The Living Force
Karymsky • Kamchatka | Russia
30 Aug 2024
www.vulkane.net
Karymsky volcano explodes 6 times and sends ash up to 10 kilometers high
On the Russian peninsula of Kamchatka, which I wrote about earlier today in relation to earthquakes and volcanoes, there has now been an eruption of the Karymsky volcano. As KVERT reports, a group of volcanologists traveling in the Uzon caldera observed how Karymsky produced six explosions. Volcanic ash is said to have risen to a height of 10 kilometers.
The VAAC Tokyo issued three VONA warnings for air traffic and noted that the ash clouds initially drifted to the northwest. Later, the wind direction changed to the opposite direction. Pilots reported volcanic ash at an altitude of 6-7 kilometers, which is not necessarily a contradiction: Apparently the initial eruption was the strongest, and subsequent explosions conveyed the ash less high.
It is interesting that this was a real eruption and not just secondary ash clouds stirred up by the wind, as was the case yesterday at Shiveluch. It is therefore possible that this eruption is a reaction of the volcano to the earthquake with a magnitude of 6.0 that occurred in the early hours of the morning near Petropavlovsk. However, this hypothesis cannot be scientifically proven. Direct evidence of such events, in which earthquakes trigger volcanic eruptions, is rare and only possible with a great deal of research.
Karymsky is located in the eastern part of the Kamchatka Peninsula in an uninhabited area not far from the coast. The volcano rises about 1,536 meters above sea level and is associated with a caldera in which a lake has formed. Until a few years ago, Karymsky was considered to be permanently active and erupted several times a day. In the meantime, its eruptions manifest themselves in phases lasting several days. Nevertheless, Karymsky is still one of the most active volcanoes on the Siberian peninsula, where there are around 30 active volcanoes.
KVERT warns of further eruptions of the volcano and leaves the alert status at “orange”.
END OF ARTICLE
Info on the Karymsky volcano
en.wikipedia.org
( geomap above, from 2012 )
30 Aug 2024
Karymsky mit Eruptionsserie am 30. August - Vulkane Net Newsblog
Vulkan Karymsky explodiert 6 Mal und lässt Asche bis auf 10 Kilometern Höhe steigen. Vulkanologen werden Augenzeugen.
www.vulkane.net
Karymsky volcano explodes 6 times and sends ash up to 10 kilometers high
On the Russian peninsula of Kamchatka, which I wrote about earlier today in relation to earthquakes and volcanoes, there has now been an eruption of the Karymsky volcano. As KVERT reports, a group of volcanologists traveling in the Uzon caldera observed how Karymsky produced six explosions. Volcanic ash is said to have risen to a height of 10 kilometers.
The VAAC Tokyo issued three VONA warnings for air traffic and noted that the ash clouds initially drifted to the northwest. Later, the wind direction changed to the opposite direction. Pilots reported volcanic ash at an altitude of 6-7 kilometers, which is not necessarily a contradiction: Apparently the initial eruption was the strongest, and subsequent explosions conveyed the ash less high.
It is interesting that this was a real eruption and not just secondary ash clouds stirred up by the wind, as was the case yesterday at Shiveluch. It is therefore possible that this eruption is a reaction of the volcano to the earthquake with a magnitude of 6.0 that occurred in the early hours of the morning near Petropavlovsk. However, this hypothesis cannot be scientifically proven. Direct evidence of such events, in which earthquakes trigger volcanic eruptions, is rare and only possible with a great deal of research.
Karymsky is located in the eastern part of the Kamchatka Peninsula in an uninhabited area not far from the coast. The volcano rises about 1,536 meters above sea level and is associated with a caldera in which a lake has formed. Until a few years ago, Karymsky was considered to be permanently active and erupted several times a day. In the meantime, its eruptions manifest themselves in phases lasting several days. Nevertheless, Karymsky is still one of the most active volcanoes on the Siberian peninsula, where there are around 30 active volcanoes.
KVERT warns of further eruptions of the volcano and leaves the alert status at “orange”.
END OF ARTICLE
Info on the Karymsky volcano
Karymsky (volcano) - Wikipedia
( geomap above, from 2012 )
XPan
The Living Force
Hekla • Iceland
30 Aug 2024
www.vulkane.net
Springs near Iceland's Hekla volcano dry up - signs of an imminent eruption?
The Hekla volcano is located in the south of Iceland and not very far from the Reykjanes peninsula, where the well-known eruption series takes place. Hekla itself last erupted in 2000 and produced 23 eruptions in the 100 years before that. On average, Hekla erupted once every 4.3 years, and if we take this short geological period as a benchmark, a new eruption would be statistically overdue.
In fact, Icelandic geoscientists have sounded the alarm several times in the last 15 years because earthquakes and ground deformations have been measured, but there has been no eruption. Eruptions at Hekla are generally difficult to predict, as earthquake activity only increases significantly immediately before the eruption begins.
Now a report is doing the rounds in the social media, according to which there is another early indicator of a possible imminent eruption of Hekla, which has now been observed on site. This is the drying up of a stream that is fed by springs on Hekla. These are the Rangárbotnar springs, which feed the Rangá stream. In the past, it has often been observed that the springs and stream dry up before an eruption, but it is not entirely clear how long before the eruption, as there are differing opinions on this.
Theory
While some proponents of the theory say that the stream dries up 1 to 2 years before an eruption, others claim that it only takes a few weeks to months for Hekla to erupt.
However, there is no scientific evidence to support the theory that the stream dries up as a precursor to an eruption.
I can well imagine that there is some truth in this, although it is not possible to make precise predictions based on such natural phenomena. Ground deformations and increased heat flow could well cause springs to dry up. There is currently no lack of rain in Iceland, so drought can be ruled out as the cause of the drying up.
Numerous earthquakes in the Vatnajökull area
In addition to Hekla, other volcanoes in Iceland could be preparing for an eruption. Particularly noticeable is the increased earthquake activity in the Vatnajökull area, which conceals several large central volcanoes in Iceland. In addition, the main channel of the Icelandic mantle plume is said to be hidden beneath the glacier. This is regarded as a main supplier of melt, which is not only erupted at the volcanoes near the glacier, but is spread over a larger area. Three years ago, there were even speculations that the melt from the plume could have supplied the eruption at Fagradalsfjall with magma.
If you look at the shakemap, you can see that there was a swarm earthquake that occurred about 18 kilometers southeast of Bardarbunga. This is a location that does not occur very often. There have also been quakes in the Grimsvötn area and outside the glacier at Askja and Herdubreid. So there could be more eruptions on the horizon in Iceland and it remains exciting!
END OF ARTICLE
30 Aug 2024
Hekla: Anzeichen eines bevorstehenden Ausbruchs - Vulkane Net Newsblog
Quellen nahe des isländischen Vulkans Hekla ausgetrocknet: Anzeichen eines bevorstehenden Ausbruchs?
www.vulkane.net
Springs near Iceland's Hekla volcano dry up - signs of an imminent eruption?
The Hekla volcano is located in the south of Iceland and not very far from the Reykjanes peninsula, where the well-known eruption series takes place. Hekla itself last erupted in 2000 and produced 23 eruptions in the 100 years before that. On average, Hekla erupted once every 4.3 years, and if we take this short geological period as a benchmark, a new eruption would be statistically overdue.
In fact, Icelandic geoscientists have sounded the alarm several times in the last 15 years because earthquakes and ground deformations have been measured, but there has been no eruption. Eruptions at Hekla are generally difficult to predict, as earthquake activity only increases significantly immediately before the eruption begins.
Now a report is doing the rounds in the social media, according to which there is another early indicator of a possible imminent eruption of Hekla, which has now been observed on site. This is the drying up of a stream that is fed by springs on Hekla. These are the Rangárbotnar springs, which feed the Rangá stream. In the past, it has often been observed that the springs and stream dry up before an eruption, but it is not entirely clear how long before the eruption, as there are differing opinions on this.
Theory
While some proponents of the theory say that the stream dries up 1 to 2 years before an eruption, others claim that it only takes a few weeks to months for Hekla to erupt.
However, there is no scientific evidence to support the theory that the stream dries up as a precursor to an eruption.
I can well imagine that there is some truth in this, although it is not possible to make precise predictions based on such natural phenomena. Ground deformations and increased heat flow could well cause springs to dry up. There is currently no lack of rain in Iceland, so drought can be ruled out as the cause of the drying up.
Numerous earthquakes in the Vatnajökull area
In addition to Hekla, other volcanoes in Iceland could be preparing for an eruption. Particularly noticeable is the increased earthquake activity in the Vatnajökull area, which conceals several large central volcanoes in Iceland. In addition, the main channel of the Icelandic mantle plume is said to be hidden beneath the glacier. This is regarded as a main supplier of melt, which is not only erupted at the volcanoes near the glacier, but is spread over a larger area. Three years ago, there were even speculations that the melt from the plume could have supplied the eruption at Fagradalsfjall with magma.
If you look at the shakemap, you can see that there was a swarm earthquake that occurred about 18 kilometers southeast of Bardarbunga. This is a location that does not occur very often. There have also been quakes in the Grimsvötn area and outside the glacier at Askja and Herdubreid. So there could be more eruptions on the horizon in Iceland and it remains exciting!
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