Volcanoes Erupting All Over
- Thread starter Laura
- Start date
Snip:
The State of Hawaii is home to six active volcanoes—Mauna Kea, Hualālai, Mauna Loa, and Kīlauea on the Island of Hawai‘i, Haleakalā on the Island of Maui, and Kama‘ehuakanaloa (formerly Lō‘ihi), a submarine volcano south of the Island of Hawai‘i. These volcanoes are classified as "active" because they have erupted within the past 10,000 years and have the potential to erupt again
Meanwhile:
XPan
The Living Force
Etna, Sicily - Italy
10 July 2023
German Vulkane.net follows the events from volcanoes around the world, e.g. Etna as well Iceland, of course. Albeit during a couple of days the server was out and I couldn't access any articles for translation here in the forum.
Regarding Etna, there was indeed a small ash eruption.
Etna with small ash eruptions
Already yesterday I could report an ash eruption from Etna. Today, the ash emission from New Southeast Crater intensified even more and several ash clouds were reported. Although they can still be considered small, they were larger than the ash emission yesterday.
Tremor is unremarkable and is in the lower third of the yellow range. Earthquake activity has been average at best over the past few days, except for the July 5 swarm quake.
Thermal radiation has also been modest. On the most recent Sentinel satellite image from July 8, only a few pixel-sized anomaly in the vent of Bocca Nuova can be seen in the infrared. MIROVA detected a weak thermal radiation with 1 MW power. New Southeast Crater had been cold.
Ash eruptions often precede a paroxysm at Etna, and it may take several days before eruption occurs. The probability of this increases when not only ash but also incandescent tephra is ejected. A few hours before a paroxysm, strombolian eruptions usually begin, with shorter intervals as the main paroxysmal phase approaches. Shortly before the main phase, a lava flow then begins.
However, ash emissions also occur and are not followed by a major eruption in the short term, so we should not set our expectations too high. A new INGV bulletin should be released tomorrow, perhaps it will contain further information on the situation assessment.
END OF ARTICLE
Giò Giusa
took some awesome images at the top of Etna... (Northeast Crater) albeit only one was published in the public vulkane.net facebook account (a few others i could retrieve via Instagram). He must be one of the most active, enthusiastic and awesome Etna photographers, given how many beautiful images he has shown to the public during the past years.
10 July 2023
German Vulkane.net follows the events from volcanoes around the world, e.g. Etna as well Iceland, of course. Albeit during a couple of days the server was out and I couldn't access any articles for translation here in the forum.
Regarding Etna, there was indeed a small ash eruption.
Vulkan-News 10.07.23: Ätna - Vulkane Net Newsblog
Ätna mit kleinen Ascheeruptionen Bereits gestern konnte ich eine Ascheeruption vom Ätna melden. Heute intensivierte sich der Ascheausstoß aus dem Neuen Südostkrater sogar noch und es wurden mehrere Aschewolken gemeldet. Obwohl man sie immer noch als klein bezeichnen kann, waren sie größer als...
www.vulkane.net
Etna with small ash eruptions
Already yesterday I could report an ash eruption from Etna. Today, the ash emission from New Southeast Crater intensified even more and several ash clouds were reported. Although they can still be considered small, they were larger than the ash emission yesterday.
Tremor is unremarkable and is in the lower third of the yellow range. Earthquake activity has been average at best over the past few days, except for the July 5 swarm quake.
Thermal radiation has also been modest. On the most recent Sentinel satellite image from July 8, only a few pixel-sized anomaly in the vent of Bocca Nuova can be seen in the infrared. MIROVA detected a weak thermal radiation with 1 MW power. New Southeast Crater had been cold.
Ash eruptions often precede a paroxysm at Etna, and it may take several days before eruption occurs. The probability of this increases when not only ash but also incandescent tephra is ejected. A few hours before a paroxysm, strombolian eruptions usually begin, with shorter intervals as the main paroxysmal phase approaches. Shortly before the main phase, a lava flow then begins.
However, ash emissions also occur and are not followed by a major eruption in the short term, so we should not set our expectations too high. A new INGV bulletin should be released tomorrow, perhaps it will contain further information on the situation assessment.
END OF ARTICLE
Giò Giusa
took some awesome images at the top of Etna... (Northeast Crater) albeit only one was published in the public vulkane.net facebook account (a few others i could retrieve via Instagram). He must be one of the most active, enthusiastic and awesome Etna photographers, given how many beautiful images he has shown to the public during the past years.
XPan
The Living Force
Mayon, Philippines
10 July 2023
The Mayon Volcano is still held at level 3 alert and appears to renew its activity.
Country: Philippines | Coordinates: 13.25, 123.68 | Activity: Dome
Renewed increase of activity at Mayon in the Philippines
Last night PHILVOLCS released a special report on increased activity at Mayon on Luzon. According to the report, there were a large number of pyroclastic density currents (PDCs) that originated from the lava dome and the fronts of the two lava flows that pass through Mi-isi and Bonga canyons.
The lava flows are 2.8 and 1.4 km long and flow quite constantly
although slowly. Precise data on the size of the lava dome are not available, but the larger it becomes, the greater the risk of destructive pyroclastic flows. Current flows are limited to a distance of 3.3 km from the dome and have not yet reached inhabited areas. Yesterday, the number of density flows increased to 24, a record for the current eruptive phase. The number of debris avalanches is also a record. It amounted to 325. In addition, there were 109 volcano-related earthquakes caused by the rising magma.
Satellite monitors yesterday detected a significant increase in sulfur dioxide emissions: emissions measured during the campaign on July 9 averaged 943 tons/day. Short-term observations from electronic tiltmeters show that the volcano's upper slopes have been inflating since February 2023. Longer-term ground deformation parameters indicate that Mayon as a whole continues to inflate, particularly in the northwest and southeast.
Two days ago, a high thermal radiation of 128 MW was detected, as displayed on MIROVA's website. After that, most of the summit hung in the clouds, so only moderate thermal radiation could be measured.
PHIVOLCS reiterates that a Level 3 alert
(increased tendency for a dangerous eruption) remains in effect over Mayon Volcano, but that an increase in the frequency of PDCs is being closely monitored. It is strongly recommended to continue evacuating areas within the 6-kilometer radius permanent danger zone and to prepare communities within the 7- and 8-kilometer radius for possible intensification of current PDC activity. Civil aviation authorities must also advise pilots to avoid flights near the volcano's summit, as ash from eruptions can be hazardous to aircraft. PHIVOLCS is closely monitoring the Mayon volcano, and any new developments will be communicated to all concerned.
END OF ARTICLE
10 July 2023
The Mayon Volcano is still held at level 3 alert and appears to renew its activity.
Vulkan Mayon mit Aktivitätssteigerung am 10.07.23 - Vulkane Net Newsblog
Gestern Abend brachte PHILVOLCS einen Sonderbericht zur gesteigerten Aktivität am Mayon auf Luzon heraus. Es gehen Dichteströme ab.
www.vulkane.net
Country: Philippines | Coordinates: 13.25, 123.68 | Activity: Dome
Renewed increase of activity at Mayon in the Philippines
Last night PHILVOLCS released a special report on increased activity at Mayon on Luzon. According to the report, there were a large number of pyroclastic density currents (PDCs) that originated from the lava dome and the fronts of the two lava flows that pass through Mi-isi and Bonga canyons.
The lava flows are 2.8 and 1.4 km long and flow quite constantly
although slowly. Precise data on the size of the lava dome are not available, but the larger it becomes, the greater the risk of destructive pyroclastic flows. Current flows are limited to a distance of 3.3 km from the dome and have not yet reached inhabited areas. Yesterday, the number of density flows increased to 24, a record for the current eruptive phase. The number of debris avalanches is also a record. It amounted to 325. In addition, there were 109 volcano-related earthquakes caused by the rising magma.
Satellite monitors yesterday detected a significant increase in sulfur dioxide emissions: emissions measured during the campaign on July 9 averaged 943 tons/day. Short-term observations from electronic tiltmeters show that the volcano's upper slopes have been inflating since February 2023. Longer-term ground deformation parameters indicate that Mayon as a whole continues to inflate, particularly in the northwest and southeast.
Two days ago, a high thermal radiation of 128 MW was detected, as displayed on MIROVA's website. After that, most of the summit hung in the clouds, so only moderate thermal radiation could be measured.
PHIVOLCS reiterates that a Level 3 alert
(increased tendency for a dangerous eruption) remains in effect over Mayon Volcano, but that an increase in the frequency of PDCs is being closely monitored. It is strongly recommended to continue evacuating areas within the 6-kilometer radius permanent danger zone and to prepare communities within the 7- and 8-kilometer radius for possible intensification of current PDC activity. Civil aviation authorities must also advise pilots to avoid flights near the volcano's summit, as ash from eruptions can be hazardous to aircraft. PHIVOLCS is closely monitoring the Mayon volcano, and any new developments will be communicated to all concerned.
END OF ARTICLE
XPan
The Living Force
Fagradalsfjall / Litli-Hrútur eruption, Iceland
10-11 July 2023
Here the livestream from the eruption
Marc Szeglat from Vulkane.net writes:
Very well done livestream of the new eruption. The stream is from the drone pilot Isak Finnbogason. You can see very nicely lava flow and lava fountains along the further ruptured fissure at the southwestern end of the magmatic passage.
11 July 2023
The volcanic eruption near Litli Hrútur on Fagradalsfjall volcano continues
The volcanic eruption that started yesterday at 16:40 near Litli Hrútur on Iceland continues. During the initial stage of the eruption, an eruption fissure about 200 m long opened, which extended to 900 m within about 2 hours.
Numerous small lava fountains shot up from the fissure, producing a lava flow that flowed toward the Fagradalsfjall volcano to the southwest. The initial estimate of the amount ejected at the beginning of the eruption is significantly higher compared to previous eruptions in the area. The scientists from IMO emphasize that the gas pollution around the eruption is high and dangerous. The gas is being blown towards Reykjanes and is also spreading in the capital region. Travelers are advised not to go to the area until responders have had a chance to assess the situation. Gas contamination near the outbreak can be dangerous. Caution is also advised on steep slopes, as rockfall can occur after the strong earthquakes.
The strong seismicity already subsided in the hours before the volcanic eruption and is still elevated until this morning. Besides the earthquakes, which partly overlapped weaker tremors, a comparatively weak tremor was registered.
Currently, a repositioned livecam shows that most of the eruption fissure has already ceased its activity. The eruption is concentrated on a part of the fissure in the first formed fissure area. Here, an elongated lava fountain is ejected. The lava flow is moving along the fissure and may be gumming up the parts of the fissure further down.
How long the eruption will last is uncertain. After the strong magma rise of the last few days, it will probably not end quite so quickly. It is within the realm of possibility that new fissures will open along the magmatic vein, especially if there is a pause at the current eruption site.
END OF ARTICLE
10-11 July 2023
Here the livestream from the eruption
Marc Szeglat from Vulkane.net writes:
Very well done livestream of the new eruption. The stream is from the drone pilot Isak Finnbogason. You can see very nicely lava flow and lava fountains along the further ruptured fissure at the southwestern end of the magmatic passage.
11 July 2023
Vulkan Fagradalsfjall-Eruption - Status am 11.07.23 - Vulkane Net Newsblog
Der Vulkanausbruch bei Litli Hrútur am Vulkan Fagradalsfjall geht weiter Der Vulkanausbruch, der gestern um 16:40 Uhr in der Nähe von Litli Hrútur auf Island begann, geht weiter. Während des Initialstadiums der Eruption öffnete sich eine ca. 200 m lange Eruptionsspalte, die sich innerhalb von...
www.vulkane.net
The volcanic eruption near Litli Hrútur on Fagradalsfjall volcano continues
The volcanic eruption that started yesterday at 16:40 near Litli Hrútur on Iceland continues. During the initial stage of the eruption, an eruption fissure about 200 m long opened, which extended to 900 m within about 2 hours.
Numerous small lava fountains shot up from the fissure, producing a lava flow that flowed toward the Fagradalsfjall volcano to the southwest. The initial estimate of the amount ejected at the beginning of the eruption is significantly higher compared to previous eruptions in the area. The scientists from IMO emphasize that the gas pollution around the eruption is high and dangerous. The gas is being blown towards Reykjanes and is also spreading in the capital region. Travelers are advised not to go to the area until responders have had a chance to assess the situation. Gas contamination near the outbreak can be dangerous. Caution is also advised on steep slopes, as rockfall can occur after the strong earthquakes.
The strong seismicity already subsided in the hours before the volcanic eruption and is still elevated until this morning. Besides the earthquakes, which partly overlapped weaker tremors, a comparatively weak tremor was registered.
Currently, a repositioned livecam shows that most of the eruption fissure has already ceased its activity. The eruption is concentrated on a part of the fissure in the first formed fissure area. Here, an elongated lava fountain is ejected. The lava flow is moving along the fissure and may be gumming up the parts of the fissure further down.
How long the eruption will last is uncertain. After the strong magma rise of the last few days, it will probably not end quite so quickly. It is within the realm of possibility that new fissures will open along the magmatic vein, especially if there is a pause at the current eruption site.
END OF ARTICLE
Iain
Jedi
Not an eruption, but yet another undersea volcano discovered to still be active and releasing warm water into the Pacific ocean off Canada:
www.livescience.com
The article focuses on the millions of Pacific white skate eggs found all over the summit of the 1,100 metre seamount and its' importance as a habitat, rather than anything more about the volcano itself.
Scientists discover ancient, underwater volcano is still active — and covered in up to a million giant eggs
Researchers discovered that an underwater volcano nearly a mile beneath the surface off the Pacific coast of Canada is spouting hot fluid, providing a little-known species of skate with an ideal nursery.
www.livescience.com
The article focuses on the millions of Pacific white skate eggs found all over the summit of the 1,100 metre seamount and its' importance as a habitat, rather than anything more about the volcano itself.
) had an effusive eruption (paroxysm) with high fountains and lava flows descending down the slopes of the volcano. No populations were affected.
That one is trully incredible. No wonder why ancients could believe volcanoes were Gods.
