Uitbarsting vulkaan IJsland #13: dooie boel.

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Op donderdag 29 april 2010 15:51 schreef djayzz het volgende:
Volgens mij zeggen die stippen niet zo heel veel.. althans, er volgt niet zo heel veel actie uit, behalve hier op het forum

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Op donderdag 29 april 2010 15:51 schreef djayzz het volgende:
Volgens mij zeggen die stippen niet zo heel veel.. althans, er volgt niet zo heel veel actie uit, behalve hier op het forum

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Op donderdag 29 april 2010 15:57 schreef Frutsel het volgende:
En hoe vaak waren die stippen zichtbaar 'voordat' we hier gezellig zaten te keuvelen dan?

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Op donderdag 29 april 2010 15:57 schreef Frutsel het volgende:
En hoe vaak waren die stippen zichtbaar 'voordat' we hier gezellig zaten te keuvelen dan?

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Op donderdag 29 april 2010 15:57 schreef djayzz het volgende:

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dat bedoel ik.

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Op donderdag 29 april 2010 16:46 schreef Drumfire het volgende:

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Misschien moet je sowieso niet uitgaan van alle vulcanologen hier op het forum

Als de mensen die ervoor geleerd hebben al moeite hebben om te voorspellen wanneer een vulkaan uitbarst, lijkt het me niet dat wij hier op basis van een paar grafiekjes kunnen vertellen wanneer het wel gaat gebeuren.

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Op donderdag 29 april 2010 16:49 schreef djayzz het volgende:

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Fok!kers zijn wel uitermate goed hoor

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Op donderdag 29 april 2010 16:03 schreef Katlaah het volgende:
Ik moet jullie teleurstellen
Ik ben vannacht gewoon een paar keer uit me bed gevallen, en dat rommelt altijd een beetje....
Had een paar nachtmerries over betonnen ballen in me strot

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Op donderdag 29 april 2010 17:05 schreef Frutsel het volgende:

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Topic kan dus wel op slot, tot er meer nieuws is

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Op donderdag 29 april 2010 16:46 schreef Drumfire het volgende:

[..]

Misschien moet je sowieso niet uitgaan van alle vulcanologen hier op het forum

Als de mensen die ervoor geleerd hebben al moeite hebben om te voorspellen wanneer een vulkaan uitbarst, lijkt het me niet dat wij hier op basis van een paar grafiekjes kunnen vertellen wanneer het wel gaat gebeuren.

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Op donderdag 29 april 2010 17:20 schreef Eyjafjallajoekull het volgende:

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Dus dan bepaald 1 mod wanneer iets 'nieuws' is .Kut zeg als die ligt te slapen en Katla barst net uit

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Op donderdag 29 april 2010 17:31 schreef Katlaah het volgende:

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Kan, of ik wordt gewoon een mod en open dan weer dit topic

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Op donderdag 29 april 2010 18:17 schreef Burner82 het volgende:

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Daar hoef je niet eens een mod voor te zijn, zelfs ik kan dat

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Op donderdag 29 april 2010 18:20 schreef kahaarin het volgende:

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Huh?! Als Fruts een topic sluit kun jij dat weer openen? Ik dacht het toch niet hoor.

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Op vrijdag 30 april 2010 07:11 schreef Burner82 het volgende:

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Nee, ik open dan een ander, maar toch weer hetzelfde topic

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Many Volunteers Help Clean Ash in South Iceland

^{The cleaning begins. Around 100 people, including search and rescue team members, volunteered to help out with the ash cleaning last weekend. Photo by Benedikt Jķhannesson.}
At least 100 people have volunteered to help clean ash from farms and other inhabited areas below the Eyjafjöll mountain range this weekend that were subject to the most extensive ash fall from the volcano in Eyjafjallajökull glacier.

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Eruption in Eyjafjallajökull - Status Report: 18:00 GMT, 29 April 2010
Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland
Compiled by: MJR / HB / MTG / SSJ / GS / BO

Based on: IMO seismic monitoring; IES-IMO GPS monitoring; IMO river gauges; web cameras of the eruption site from Vodafone, Mila, and Múlakot; IMO weather radar measurements; information from the local police; and aerial observations from a scientific flight with the Icelandic Coastguard (observation plane TF-SIF).

Eruption plume:
Height (a.s.l.): Not visible above clouds at 3.6–5.1 km (12–17,000 ft), but most likely below 3.6 km (12,000 ft). Before the overflight this morning, the eruption plume was not seen on radar images from Keflavík, nor on satellite images.
Heading: West and possibly southwest from the eruption site, but probably remaining close to Eyjafjallajökull due to light winds.
Colour: Cloud-cover obscured direct observations.
Tephra fallout: Light, fine-grained ash-fall reported in the morning during rain at
Ásķlfsskáli, located 10.5 km south-west of the eruption site. Similar conditions also reported from a farm 12 km south-southwest of the eruption site at 15:00 GMT.
Lightning: Four lightning strikes detected over the summit of Eyjafjallajökull between 19:47 and 20:03 GMT on 28 April.
Noises: Booming sounds were reported yesterday evening, and again this morning, from Selsund, located ~40 km north-northwest of the eruption site.
Additional note: 16:13 GMT:Asulphur smell was detected at 3 km a.s.l. (10,000 ft) by pilots on a passenger flight 50–60 nautical miles east of Keflavík Airport.

Meltwater: Web-camera views show continued discharge of water from Gígjökull due to lava-ice interactions. On 28 April, the discharge of Markarfljķt was measured twice at the old bridge, ~18 km downstream from Gígjökull. The flood that began at Gígjökull at ~11:30 GMT yesterday reached a peak discharge of 250 m3 s–1 two hours later at the bridge. Both yesterday and today, mean discharge from Gígjökull was 130–150 m3 s–1, which is higher than in previous days. The electrical conductivity of Krossá and Steinholtsá remains high (see report from 28 April for details).

Conditions at eruption site:
Airborne radar surveys from TF-SIF show a well-formed crater. Lava is spreading northward from the crater toward the head of Gígjökull. Ice continues to be melted by the propagating lava
front.

Seismic tremor: Intensity comparable to the preceding six days of eruptive activity.

Earthquakes: At 13:10 GMT, an Ml 1.5 earthquake was detected at shallow depth beneath the summit caldera; it is possible that this earthquake was a seismic explosion from the erupting crater.

GPS deformation: Horizontal displacement towards the centre of the volcano, in addition to vertical subsidence. These observations are consistent with deflation of a magma reservoir
beneath Eyjafjallajökull.

Magma flow: No measurements possible today.

Other remarks: No measurable geophysical changes within the Katla volcano.

Overall assessment: Plume elevations and magma discharge levels remain similar to the preceding six days of activity. Lava continues to flow north from the eruption site toward the head of the Gígjökull glacier. Today's explosive activity and ash production represents a fraction of conditions during the height of the eruption (14–17 April). Presently, there are no measurable indications that the eruption is about to end.

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Op vrijdag 30 april 2010 15:17 schreef Mountainwatcher het volgende:
Zeggen die drie aarbevingen op de Katla niets dan?

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/

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Eruption in Eyjafjallajökull - Status Report: 17:00 GMT, 30 April 2010
Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland
Compiled by: MJR / MTG / FS / GS / SSJ

Based on: IMO seismic monitoring; IES-IMO GPS monitoring; IMO hydrological data; web cameras of the eruption site from Vodafone, Mila, and Múlakot; IMO weather radar measurements; information from scientists at Gígjökull; and aerial observations from the Icelandic Coastguard (observation plane TF-SIF).

Eruption plume:
Height (a.s.l.): Detected by weather radar at 15:20 GMT at an elevation of 2.8 km over the eruption site. TF-SIF observations at 15:40 GMT confirmed a steam plume rising to 4.5–5.1 km (15–17,000 ft). Clouds of ash at lower elevations observed drifting south of the eruption site.
Heading: South and south-west from the eruption site, but probably remaining close to Eyjafjallajökull due to light winds.
Colour: White (steam) clouds at higher elevation; dark grey (ash) clouds seen intermittently at lower elevation (see above).
Tephra fallout: Dark, fine-grained ash-fall reported over a 10 km region south of Eyjafjallajökull between Núpur and Skķgar.
Lightning: No detections today over the eruption site (17:00 GMT).
Noises: Booming sounds reported in the vicinity of Eyjafjallajökull.

Additional note: Plumes of white plume were noticed over Gígjökull (15:40 GMT); this steam probably represents the position of the northward-flowing lava flow.

Meltwater: Web-camera views show continued discharge of water from Gígjökull due to lava-ice interactions. At 05:00 GMT a flood was detected leaving the Gígjökull lake basin. The flood reached a maximum discharge about two hours later at the old bridge over Markarfljķt, ~18 km downstream. The flood was comparable in size to yesterday's gauged flows. At 14:00 GMT, meltwater flow beneath the bridge was ~200 m3 s–1. Discharge from Gígjökull decreased during the afternoon. Steaming blocks of rock are being deposited in the Gígjökull basin; these blocks are probably solidified lava from eruption. The electrical conductivity of Krossá and Steinholtsá remains high (see reports from 28 and 29 April for details).

Conditions at eruption site:
Airborne radar surveys from TF-SIF show a well-formed crater. Lava is spreading northward from the crater toward the head of Gígjökull. Ice continues to be melted by the propagating lava front.

Seismic tremor: Intensity comparable to the preceding six days of eruptive activity.

Earthquakes: No locatable seismicity detected beneath Eyjafjallajökull.

GPS deformation: Horizontal displacement towards the centre of the volcano, in addition to vertical subsidence. These observations are consistent with deflation of a magma reservoir beneath Eyjafjallajökull.

Magma flow: No measurements possible today.

Other remarks: No measurable geophysical changes within the Katla volcano.

Overall assessment: Plume elevations and magma discharge levels remain similar to the preceding seven days of activity. Lava continues to flow north from the eruption site and down the Gígjökull glacier. Today's explosive activity and ash production represents a fraction of conditions during the height of the eruption (14–17 April). Presently, there are no measurable indications that the eruption is about to end.

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The eruption of Iceland’s Eyjafjallajökull set geologists on frantic runs to monitor possible volcano eruptions

Next on their radar is volcano Vesuvius located in the Bay of Naples, Italy.

Italian volcanologists are keeping track of two active sites after Guido Bertolaso, the president of Italy’s Civil Protection Department, announced that there is a possibility that the island of Ischia, a close neighbor of Vesuvius, will erupt very soon.

An estimated 650,000 people inhabit the slopes of Vesuvius and are at high risk. Due to the potentially detrimental effects of the island’s volcanos, the Italian minister called for a reevaluation of the emergency response team in the region around the two volcanoes. Up to 1 million people may need to be evacuated.

Katla, another volcano in Iceland is also under surveillance, according to recent speculations that Eyjafjallajökull might have upset Katla’s 92-year-long sleep.The reason for the prediction is historical evidence that the previous three times Eyjafjallajökull erupted, Katla followed.

“As bad as Eyjafjallajökull is, Katla could be much, much worse,” said Jay Miller, manager of Technical & Analytical Services at the A&M University in Texas, according to the Texas A&M University website.

Other volcanoes that are also getting special attention now include Mauna Loa, Hawaii; Sakurajima and Mount Hokodate-yama both in Japan; St. Helens, Washington; and Popocatepelt, Mexico.

Most of these volcanoes are among the most active in the world, so geologists have been watching them since their formation.

According to AFP, Bertolaso said, "Unfortunately, no one in the world can predict when a volcano will wake up … or predict an earthquake. There's a week or 10 days from the first signs until the moment it's too late

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Op vrijdag 30 april 2010 23:30 schreef Frutsel het volgende:
Het lijkt wel of door de eruptie van EyFrutselNogwat de geologen op aarde wakker worden gemaakt..
[..]

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Next on their radar is volcano Vesuvius located in the Bay of Naples, Italy.

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Iceland volcano rumbles on, life does too
Posted on01 May 2010. Tags: Eyjafjallajokull, Iceland, Iceland volcano picture, volcano

The Iceland volcano erupting from Eyjafjallajokull is expected to cause ash fall in the southeast of Iceland today due to gentle north-westerly winds. Relatively small amounts of ash fell to the south of the volcano yesterday and Thursday, which temporarily stopped the farm clean-up operation.

Weather radar shows that the gas cloud reached around three kilometres high yesterday afternoon but the skies over the Eyjafjallajokull glacier began to clear again yesterday evening. Webcams pointing at the volcano showed clouds of steam coming from the rift on the Gigjokull glacial tongue, indicating that the lava running over the glacier is melting more ice under the brand new crust, RUV reports.

The ongoing eruption remains relatively stable and all Icelandic airports and main roads are open as usual, causing an increasing flow of visitors eager to see the volcano – although close-up viewing remains prohibited by police.

^{Photographer: Anders Peter Amsnæs / www.imagix.dk}

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Op zaterdag 1 mei 2010 16:04 schreef Re het volgende:
ik moet over 2 weken weer 3x vliegen...

_{verkapte tvp dus}

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Op zondag 2 mei 2010 09:35 schreef Burner82 het volgende:
Ziet er mooi uit

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Op zondag 2 mei 2010 10:41 schreef Isiolo het volgende:

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2e boem op de voorgrond ?

[ afbeelding ]

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Eruption in Eyjafjallajökull - Status Report: 18:00 GMT, 1 May 2010
Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland
Compiled by: MJR / HB / FS / SSJ / BO

Based on: IMO seismic monitoring; IES-IMO GPS monitoring; IMO hydrological data; web cameras of the eruption site from Vodafone, Mila, and Múlakot; IMO weather radar measurements; information from scientists at Gígjökull; aerial observations from two scientific overflights: TF-SIF (10:30–11:00 GMT) and Eagle Air (16:40–17:15 GMT).

Eruption plume:
Height (a.s.l.): TF-SIF observations at 10:30 GMT confirmed an ash plume rising to 4–5.4 km (13–18,000 ft) near to Eyjafjallajökull. Clouds of ash at lower elevations observed drifting south-east of the eruption site. No verifiable detections from the weather radar at Keflavík Airport.
Heading: South-east from the eruption site. Plume track detected up to 400 km from the eruption site on AHRR and MODIS satellite imagery (12:11 GMT and 13:30 GMT).
Colour: Dark grey (ash) clouds observed up to 4 km a..s.l. (~13,000 ft). White (steam) plumes rising from Gígjökull, north of the eruption site.
Tephra fallout: Dark, coarser-grained ash-fall reported at Ytri Sķlheimar (11:00 GMT), located 22 km south-east of Eyjafjallajökull.
Lightning: No detections today over the eruption site (18:00 GMT).
Noises: Booming sounds reported in the vicinity of Eyjafjallajökull.
Additional note: Plumes of white steam extend partway down Gígjökull. The uppermost plume represents the position of the northward-flowing lava flow, whereas the lower plumes are from hot meltwater.

Meltwater:
Discharge remains high from Gígjökull due to lava-ice interactions. Aerial observations of Gígjökull show that warm meltwater has carved a trench partway down the glacier. The electrical conductivity of Krossá and Steinholtsá remains high (see reports from 28–30 April for details).

Conditions at eruption site:
A 200-m-wide eruptive crater is visible within the ice cauldron. The rim of the crater appears to be ~30 m lower than the adjacent ice surface. Lava has propagated ~1 km north from the crater toward Gígjökull. Although steam is forming over the lava front, no large emissions of steam originate from the eruptive crater.

Seismic tremor:
Intensity comparable to the preceding eight days of eruptive activity.

Earthquakes:
No locatable seismicity detected beneath Eyjafjallajökull.

GPS deformation:
Horizontal displacement towards the centre of the volcano, in addition to vertical subsidence. These observations are consistent with deflation of a magma reservoir beneath Eyjafjallajökull.

Magma flow:
No measurements possible today.

Other remarks:
No measurable geophysical changes within the Katla volcano.

Overall assessment:
Plume elevations and magma discharge levels remain similar to the preceding eight days of activity. Lava continues to flow north from the eruption site and down the Gígjökull glacier. Today's explosive activity and ash production represents a fraction of conditions during the height of the eruption (14–17 April). Presently, there are no measurable indications that the eruption is about to end.

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Op zondag 2 mei 2010 12:06 schreef kahaarin het volgende:
Dagrapport van gisteren:


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Het betreft dus geen 2e krater maar een goot die door de lava in de gletsjer is uitgesmolten, daarom is de 2e pluim zo wit, het is alleen maar stoom.
Er is nog wel een beetje asuitstoot bij de orginele krateruitgang en de uitbarsting is op een vergelijkbaar niveau als de afgelopen dagen.

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Op zondag 2 mei 2010 21:48 schreef Mountainwatcher het volgende:
Als deze stijging in de grafieken ziet... ik kan het helaas niet interpreteren. Wat denken jullie?

http://hraun.vedur.is/ja/Katla2009/gosplott.html

Ik zag ze ook pas net

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Op zondag 2 mei 2010 17:19 schreef mouzzer het volgende:

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Was me paar dagen geleden al opgevallen dat er veel meer rook uit de buurt van de gletsjertong kwam, benieuwd of we straks ook lava gaan zien als de goot de rivier bereikt. Vanacht was het ook weer een mooi schouwspel.

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Op zondag 2 mei 2010 22:41 schreef Mountainwatcher het volgende:
Nee, voor de Katla, maar voor de moeilijke naam ;-) Het ziet er nogal stijgend uit, sommige pieken zitten al hoger dan tijdens het begin van de eruptie

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Op zondag 2 mei 2010 23:03 schreef kahaarin het volgende:

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Hmm, misschien zo eens ff kijken.

Over de grafieken, bedenk dat een verandering van windrichting al voor trillingen kan zorgen, ik denk dat het smeltwater is en ijs dat zich aan het zetten is, het dagrapport rept ook over lawaai van brekend ijs dus denk ik dat het niet in de berg zit maar dat het ligt aan het ijs dat er bovenop ligt.