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Posts Tagged ‘MODIS Image of Eyjafjallajökull eruption’

Eyjafjallajökull Eruption – MODIS Image – UPDATE May 8

Posted by feww on May 8, 2010


See Below for details.


Eyjafjallajökull Glacier Volcano Continues to Eject Dense Plume of Ash

Iceland’s Eyjafjallajökull volcano continued to emit a dense plume of ash and steam on May 7, 2010. The plume extends southeast from the volcano, but curves south beyond the lower edge of the image. The large image, which includes a wider area, reveals that the ash is blowing over the Atlantic Ocean west of Ireland. On Iceland, low-level winds pick up ash that had settled on the land. This plume of resuspended ash blows south from the island. The higher-elevation volcanic plume casts a dark shadow on the lower-elevation resuspended ash. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image on May 7, 2010. Image and caption: NASA E/O. Download large image (3 MB, JPEG)

Eruption in Eyjafjallajökull Status Report: 16:00 GMT, 07 May 2010

The following is a brief summary of the report:

  • Decrease in explosive activity since yesterday.
  • Plume height lower (7.6km max), ash color lighter.
  • Steam still rising from lava front under Gígjökul.
  • Large ash fallout reaching up to 60 km from the crater.
  • No sign eruption might be  ending.
  • Earthquakes are occurring at 5-13 km depth, frequency of occurrence lower than yesterday.
  • Surface deformation stabilized since yesterday.
  • Only 5 % of particles smaller than 10 micron (aerosols)

21-hour animation of ash cloud from Eyjafjallajökull volcano drifting from Iceland to Ireland and Scotland. Source: IMO . See also The initial ash cloud on 15th April. Click image to enlarge.

Eyjafjallajökull volcanic ash cloud shuts 15 airports in Europe

As the 2,000km (1,200mile) ash cloud further encroaches into European airspace, targeting tourist destinations, more  airport closures expected in northern Portugal and southern France.

List of the airports that have been affected, as of posting, includes Asturias, Bilbao, Burgos, La Coruna, Leon, La Rioja, Pamplona, Salamanca, San Sebastian,  Santander, Santiago, Valladolid, Vigo, Vitoria and Zaragoza.

UK’s Met Office said the Icelandic volcano was sending ash up to heights of 9.1km (30,000 ft ) at about 10:00UTC today.

Eyjafjallajökull Ash Cloud drifting toward southern Europe.
© Copyright EUMETSAT/Met Office

Volcanic Ash Advisory from London – Issued graphics (UK Met Office)

Click image to enlarge.

Webcame images by Mila
Click image to enlarge.

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Posted in Eyjafjallajökull, Eyjafjallajökull eruption, Eyjafjallajökull glacier, Eyjafjöll, volcanic ash, volcanic eruption | Tagged: , , , | Leave a Comment »

Eyjafjallajökull Eruption – UPDATE May 7

Posted by feww on May 7, 2010

Fire-Earth Forecasts a Large Explosion at Eyjafjallajökull Glacier, Possibly Soon

New Ash Cloud Grounds Flights

The Irish Aviation Authority (IAA), the body responsible for Irish airspace, has imposed flight restrictions at six of Ireland’s airports from 00:00UTC on Friday, citing risks from new volcanic ash cloud.

The flight bans are at Shannon, Donegal, Knock, Galway, Kerry and Sligo airports , which will remain shut until at least  12:00UTC on Friday, May 7, 2010.

The new ash cloud from the ongoing eruption at Iceland’s Eyjafjallajökull Glacier volcano  was penetrating the Irish airspace along the west coast of Ireland, the IAA reported.

“The restrictions are required as the increased level of recent volcanic activity has created a massive ash cloud stretching 1,000 miles long and 700 miles wide,” an IAA spokesperson told reporters.

Iceland’s Eyjafjallajokull Volcano began a fresh round of explosive ash eruptions in the first week of May. On the morning of May 6, 2010, MODIS on NASA’s Terra satellite captured this view of a thick plume of ash blowing east and then south from the volcano.  Ash clouds can have a dramatic influence on air quality and vegetation, including crops. In Iceland, the ash from Eyjafjallajokull has settled thickly on the ground, posing a threat to livestock and wildlife. Image and Caption NASA. [Edited for brevity.] Download large image (880 KB, JPEG)

Recent Status [IMO and Webcams]

  • Explosive activity has been increasing since May 4, 2010.
  • Ash plume shooting higher, reaching up to 9km (30,000 feet) a.s.l.
  • Tephra fallout on the rise.
  • “Considerable ashfall at Þykkvabæjarklaustur in Álftaver (at a distance of 65-70 km), (everything has turned black). It has not been established whether the ash cloud south of Eyjafjallajökull is ashfall or ash that has already fallen and is being blown from the ground.” IMO said.
  • “Discharge from Gígjökull decreases further and meltwater seems to be running from the eastern side of the glacier. This is different from Tuesday’s meltwater were water was running from the west side. Lava flow might be changing the direction of meltwater flow. Such changes should be taken seriously with regard to possible outbursts due to accumulation of meltwater.”
  • Earthquakes occurring at a rate of about 1 per hour (average M2., largest 2.2Mw).
    [should start packing your bags if the frequency reaches 3-5 per hour and the magnitude rises above 3.3Mw. FEWW]
  • Eruption appears to be ongoing.
  • No measurable geophysical changes within the Katla volcano reported.
  • System chaos is increasing,  rather than decreasing.

Volcanic Ash Advisory from London – Issued graphics

Click image to enlarge.

Earthquake location   07 May 15:05 GMT [IMO]

© Veðurstofa Íslands. Click image to enlarge.

Freeze Frame
Eyjafjallajökull Hvolsvöllur Webcam (15:30UTC). Fire-Earth estimates the plume to be reaching a height of about 7km a.s.l. Click image to enlarge.

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Posted in environment, iceland ash cloud, Iceland volcano, Icelandic ash cloud, Satellite Image of Eyjafjallajökull eruption | Tagged: , , , | Leave a Comment »