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Archive for the ‘Fimmvörduháls’ Category

Eyjafjallajökull Volcano Cauldron – Satellite Images

Posted by feww on April 19, 2010

Eyjafjallajökull Volcano Cauldron and Ash Plume  Seen in NASA Satellite Images


Visible (left) and infrared (right) images of Iceland’s Eyjafjallajökull volcano, acquired April 17, 2010, from the Hyperion instrument onboard NASA’s Earth Observing-1 (EO-1) spacecraft. Image credit: NASA/JPL/EO-1 Mission/GSFC/Ashley Davies

In the left-hand image, created from visible wavelengths, new black ash deposits are visible on the ground, as well as nearby brilliant unsullied ice and snow and the volcano’s brown, billowing plume. The plume’s dark color reflects its large ash content. These fine particles of pulverized rock are carried high into the atmosphere, where they create a hazard for aviation and are carried long distances by the prevailing winds.

In contrast, the false-color, infrared image at the right reveals the intense thermal emissions (at least 60 megawatts, or 60 million watts) emanating from the vent at the base of the massive plume. This thermal emission, equivalent to the energy consumption of 60,000 homes, represents only a small proportion of the total energy being released by the volcano as its molten lava interacts violently with ice and water. Each image covers an area measuring 7.7 kilometers (4.8 miles) wide, and has a resolution of 30 meters (98 feet) per pixel. The vertical direction is north-northeast. Images and Caption: NASA [Edited for brevity.]

Related Links:

Eyjafjallajökull Eruption – Satellite Images
Eyjafjallajökull Eruption – UPDATE Apr 18 [Other links to Eyjafjallajökull are found on this page]

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Eyjafjallajökull Eruption Intensifies

Posted by feww on April 17, 2010

Webcams Show Heightened Activity

Eruption at Eyjafjallajökull has steadily Intensified in the past 3 hours

Eyjafjallajökull has resumed explosive activity in the past 3 hours, having earlier slowed down to sporadically ejecting single plumes of ash once every 2 to 3 minutes.

The following are latest images obtained from two webcams that are trained on Eyjafjallajökull at Valahnúk and Hvolsvelli stations. The images show a constant stream of ash, steam and fumes spewed from the Icelandic volcano.The images are provided by Míla ehf and may be subject to copyright.


Valahnúk Webcam freeze frame of Eyjafjallajökull at 08:55UTC .


Hvolsvelli Webcam Image of Eyjafjallajokull also recorded at 08:55UTC.

The following irregular sequence of images were recorded from Hvolsvelli Webcam.


[L-R and T-B] Freeze frames shows a large plume of ash, steam and gasses ejected from the volcano just after sunrise at 5;16UTC on April 17, 2010. The ash plume seen in the first frame above dispersed (second frame) within minutes of being ejected from Eyjafjallajokull; however, after a series of explosions that occurred about 30 seconds later, another plume was ejected out of the volcano’s crater. The new plume seemed to be slightly larger than the previous one. Click image to enlarge.

Another sequence of images recorded simultaneously from Hvolsvelli and Valahnúk Webcams.


[T – B] The above freeze frames were recorded at about 5:31UTC, showing single plumes of ash and gasses ejected from
Eyjafjallajokul. Click image to enlarge.


[T – B] The above freeze frames were recorded at about 5:35UTC. Most of the frames show two plumes, indicating a gradual increase in the frequency of eruptions at Eyjafjallajokul. Click image to enlarge.


This frame was recorded at 5:40UTC showing 3 plumes which meant the eruptions at Eyjafjallajokul had further intensified. Click image to enlarge.

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Eyjafjallajökull – UPDATE Apr 17

Posted by feww on April 17, 2010

Eyjafjallajökull Still Erupting

40,000 flights grounded since Thursday to avoid engine failure from Eyjafjallajökull ash

A new round of flooding has affected the areas around Eyjafjallajokull, as hot gases from the volcano continue to break up and melt the glacier that covers it.

Huge volumes of floodwater and massive chunks of ice, some reportedly as large as 3-story apartment blocks, have forced about 1,000 locals to evacuate their homes, most of them for a second time in 3 days. The floodwaters have almost completely washed off a causeway along the flooded Markarfljot river, which was severely damaged in the first round of flooding.

According to a local report,  the eruption is somewhat weakening, and Eyjafjallajökull is producing less ash, for now.

Sunrise at Eyjafjallajokull


Valahnúk Webcam freeze frame of Eyjafjallajökull shortly after sunrise.


Hvolsvelli Webcam Image of Eyjafjallajokull. Freeze frame shows a large plume of ash, steam and gasses ejected from the volcano just after sunrise at 5;16UTC on April 17, 2010. The ash plume seen above dispersed within minutes of appearing, but about 30 seconds and a series of explosions later, a larger plume was spewed out of the volcano’s crater. See the dramatic sequences in the next update.

Click image to enlarge.


Staff from the Icelandic Meteorological Office flew with the Icelandic Coast Guard to the Eyjafjallajökull eruption site on the afternoon of April 16th 2010. At 4 pm the volcanic ash cloud was clearly visible above the cloud deck, rising at times to at least 30,000 feet. Steady winds from the east-north-east moved the cloud away from the volcano. The cloud height was variable from 25 to 30,000 feet and its colour varied from dark to white, depending on how much ash was in the cloud. Credit: Icelandic Met Office.
Image may be subject to copyright.


The Surreality Test. Credit:
Jónas Erlendsson via MBL-Is. Image may be subject to copyright.


The above photo shows the outlet glacier, which is dark at the top due to mud from the flash floods. At the base the glacier flows to the right of a large cracked rock.Credit: Icelandic Met Office. Image may be subject to copyright.  More Photos…


A diagrammatic  illustration of volcanic ash dispersion up to 20,000 ft, issued at 7 pm on 16 April. Advisory charts are issued every six hours, for up to 18 hours ahead, by the Volcanic Ash Advisory Center. Source: UK Met Office.


According to the UK Met Office the cloud were moving over northern France and Austria, as well as  eastern and central Russia. © Copyright EUMETSAT/Met Office.

The ash particles range in size from 15 × 20 µm to 70 × 85 µm. (1 µm is a millionth of a meter, or a thousands of a millimeter).


Ash dust particles (at ×400) collected from Aberdeen on the morning of 16 April. These particles are approximately 60 × 70 µm.


Ash dust particles at ×100. Source and Copyright Scottish Environment Protection Agency.

Geoengineer This!

Credit: Golli / Kjartan Þorbjörnsson via MBL-Is. Image may be subject to copyright.

What Happend to Disaster Tourism?

The rascals coiled their tails and ran for the coast. Nearby roads covered in a thick blanket of volcanic ash. Credit: Ómar Óskarsson via MBL-Is. Image may be subject to copyright.

Click link for Eyjafjallajökull Eruption – Satellite Images

The All Important Pronunciation: ‘Aye-ya fyah-tla jow-kutl

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Videos

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Technical information:

Webcams – Volcanoes in Iceland

Latest Images (RUV): http://www.ruv.is/flokkar/hamfarir

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Serial No 1,585. Starting April 2010, each entry on this blog has a unique serial number. If any of the numbers are missing, it may mean that the corresponding entry has been blocked by Google/the authorities in your country. Please drop us a line if you detect any anomaly/missing number(s).

Posted in Eyjafjallajökull, Fimmvörduháls, Iceland volcano, Katla, Laki | Tagged: , , , , , , | 4 Comments »

Eyjafjallajökull Eruption – Satellite Images

Posted by feww on April 17, 2010

Ash cloud from Eyjafjallajökull eruption has grounded about 30,000 flights, so far!


Ash from Iceland’s erupting Eyjafjallajökull Volcano had drifted over northern Europe by April 16, 2010. The brown ash is mixed with clouds in this photo-like image taken by MODIS on NASA’s Terra satellite at 12:45 p.m. local time (GMT/UTC+2) on April 16,2010. The visible ash sweeps in an arc across the Netherlands, Germany, Poland, and Russia. Additional ash is most probably masked by clouds. Source: NASA. Click image to enlarge.


The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image on April 15, 2010. A volcanic plume blows from Eyjafjallajökull Volcano in southern Iceland toward the east-southeast. The plume’s tan hue indicates a high ash content. Volcanic ash consists of tiny jagged particles of rock which can cause engine failure, if sucked into an airplane’s turbines. Source: NASA. Click image to enlarge.

DLR, TerraSAR-X, via Associated Press

A computer enhanced image of  Eyjafjallajokull glacier in Iceland acquired by the TerraSAR-X satellite on April 16, 2010 (late PM).
Image may be subject to copyright. Click image to enlarge.

For the latest Eyjafjallajökull update and links see

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Eyjafjallajökull Eruption – UPDATE Apr 16

Posted by feww on April 16, 2010

A Time to Reflect!

Much volcanic activity may occur in Iceland during the coming months: Eyjafjallajökull, perhaps Katla, Laki and others … even Jan Mayen their northerly neighbor could kick in keeping more flights grounded

Eyjafjallajökull Eruption Has Grounded Flights Across Much of Europe for a Second Day

As the eruption at Eyjafjallajökull volcano continues unabated, more smoke and ash from the glacier-filled volcano in Iceland drifts into Europe’s airspace, affecting up to a million air passengers. The disruption could continue into the weekend and beyond.


A radar image of the three craters emerging from under the Eyjafjallajokull glacier April 16, 2010. Credit: Icelandic Coast Guard

As of posting, up to 8,000 flights have been canceled since a no-fly zone was declared in northern Europe on Thursday.  The airspace from as far west as the Republic of Ireland to Finland and was Western Russia are now closed. The countries that are directly affected and whose airspace have been shut down are: Republic of Ireland, Norway, UK, Netherlands,  Belgium, Denmark, Sweden and Finland.

Additionally there is a partial or planned no-fly zones currently operating in the northern airspace of three  other countries: France, Germany and Poland.


Volcanic Ash and fumes (dark yellow, mustard and various shades of brown) from Iceland’s Eyjafjallajökull eruption drift toward NW Europe. Copyright EUMETSAT 2010. Click image to enlarge.

How long Will the Eruption Last?

“It is likely that the production of ash will continue at a comparable level for some days or weeks. But where it disrupts travel, that depends on the weather,” Einar Kjartansson, a geophysicist at the Icelandic Meteorological Office, told the reporters.

The last time the subglacial volcano erupted, it went on ejecting ash for a period of two years, from 1821 to 1823.

Ash Drifting Very Slowly

In the absence of wind the ash cloud is “progressing very slowly eastwards” and has remained “very dense,” the European air traffic control, Eurocontrol, has said.

“In general, the situation cannot be said to be improving with any certainty,”  the National Air Traffic Service in the UK was quoted as saying.

The European air traffic control organisation, Eurocontrol, said a lack of wind meant the ash cloud created by the volcano underneath Iceland’s Eyjafjallajoekull glacier was “progressing very slowly eastwards” and remained “very dense”.

In addition to the European airlines, at least 5 other long-haul airlines have canceled flights to Europe.

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Videos

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Technical information:

Webcams – Volcanoes in Iceland

Latest Images (RUV): http://www.ruv.is/flokkar/hamfarir

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Serial No 1,581. Starting April 2010, each entry on this blog has a unique serial number. If any of the numbers are missing, it may mean that the corresponding entry has been blocked by Google/the authorities in your country. Please drop us a line if you detect any anomaly/missing number(s).

Posted in Eyjafjallajökull, Fimmvörduháls, Iceland volcano, Katla, volcano | Tagged: , , , , , | 2 Comments »

Eyjafjallajökull eruption melts glacier

Posted by feww on April 15, 2010

Katla volcano may be next in line to erupt: Fire-Earth

New volcanic eruption at Eyjafjallajökull melts Gígjökull  glacial tongue, causing extensive flooding in Markarfljót river, south of Iceland

Eruption at Eyjafjöll is consistent with recent global patterns of volcanism and tectonism. Wild eruptions may occur in Iceland and elsewhere—Fire-Earth [March 22]


Eyjafjallajökull erupts, causing extensive flooding. Photo credit: MBL-IS. Image may be subject to copyright. Click image to enlarge.

Geologists who flew over Eyjafjallajökull glacier said a deep fault trough has occurred  around the crater below the summit of the glacier.

The gap measures about 500 meters, a report said. However, the geologists were unable to detect any vents or signs of eruption due to the cloud cover.

The eruption which occurred in the top crater, buried about 200m beneath the ice, ejected a large plume of volcanic ash that reached a height of about 6,700m (22,000 feet) and there was ash fall to the east of Fimmvörduháls.

The glacial river has flooded at a rate of about 1,000 cubic meters per second, a report said.

Air Traffic Suspended North of Norway

Norway has suspended air traffic in its northern airspace due to the threat of engine damage from the impact of volcanic ash that has traveled far covering a vast area after the eruption at Eyjafjallajökull glacier. The ash and smoke particles in the air have also reduced visibility considerably, a report said.


Maps of Ash Drift from Eyjafjallajökull Eruption. Source: RUV Island. Image may be subject to copyright.
Click image to enlarge.

“We have closed the aviation area between Bodoe and Tromsoe and are considering closing the aviation area all the way south to Trondheim,” Sindre Aanonsen, spokesperson for the Norwegian air traffic control center said to reporters.

Fimmvörduháls Eruption

The eruption at Fimmvörduháls, which began on March 20,  has extended the height of the mountain by about 82 meters, geologists were reported as saying.


Eyjafjallajökull volcano’s lava fountains (April 13, 2010). Photo: Patrick Koster, Barcroft/Fame Pictures/ via National Geographic. Image may be subject to copyright
. Click image to enlarge.

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Serial No 1,574. Starting April 2010, each entry on this blog has a unique serial number. If any of the numbers are missing, it may mean that the corresponding entry has been blocked by the authorities/Google in your country. Please drop us a line if you detect any anomaly/missing number(s).

Posted in Eyjafjallajökull, Fimmvörduháls, Iceland volcano, volcanic eruption, volcano | Tagged: , , , , | 4 Comments »

Eyjafjöll Eruption Update – April 3

Posted by feww on April 3, 2010

Serial No  1,532. If any posts are blocked in your country, please drop us a line.

Fimmvörduháls Eruption May be Intensifying – A Second Fissure Has Appeared

A new volcanic fissure has appeared near Eyjafjallajökull in southern Iceland to the northwest of the original fissure on March 31. It may be a sign that the eruption at Fimmvörduháls is intensifying.

A pilot on a sight-seeing flight observed the vent at about 7:00PM  on Wednesday (local time). He saw a sudden flash of light followed  by a new rift, which opened up immediately after, a report said.


The natural-color satellite image (ALI on NASA’s EO-1) above shows a new fissure at Fimmvörduháls near Eyjafjallajökull ejecting steam. The vent, which appeared on March 31, is located  northwest of the original vent. Source: NASA


Map of the Lava flow. Click image to enlarge.
Full map including flow data and legend available at Map of the lava flow from 21 – 31 March 2010 (by Eyjólfur Magnússon, pdf file)

Latest and the most spectacular video of the eruption:

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Webcams – Volcanoes in Iceland

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Eyjafjöll Still Erupting

Posted by feww on March 31, 2010

Eyjafjöll Volcano on Fimmvörduháls Continues Erupting

As volcanic activity at the Fimmvörduháls in south Iceland waxes and wanes, an expert said up to 20 million cubic meters of pyroclasts may have been ejected from the fissure.

Local geophysicist Magnús Tumi Gudmundsson said the volcano may have spewed an estimated, 15-20 million cubic meters of tephra since the eruption began on March 21.  The lava now covers an area of about one square kilometer, he told a local newspaper.


Tephra fountain seen at Fimmvörduháls. Source . Image may be subject to copyright. Click image to enlarge.


Lava Fall created by eruption at Iceland’s Fimmvörduháls  Source. Image may be subject to copyright.
Click image to enlarge.


Increased Volcanic Activity in Iceland
. Image may be subject to copyright.

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Posted in Fimmvörduháls, Iceland volcano, pyroclasts, tephra, Tephra fountain | Tagged: , , , , , , , , , | 4 Comments »