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Eyjafjallajökull Caldera Eruption

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posted on May, 3 2010 @ 05:08 AM
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Goodmorning to you all. Here the official report from 2 may!

Eruption in Eyjafjallajökull - Status Report: 21:00 GMT, 02 May 2010
Icelandic Meteorological Office and Institute of Earth Sciences, University of Iceland
Compiled by: MJR / MTG / FS / BO / SSJ / SH

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. [No scientific overflight today.]

Eruption plume:
Height (a.s.l.): Estimated from web-camera views and observers on the ground at an elevation of 4–5.4 km (13–18,000 ft). 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 visible at least 200 km from the eruption site on MODIS (12:35 GMT) and EUMETSAT (17:15 GMT) satellite imagery.
Colour: Dark grey (ash) clouds observed over the eruptive site. White (steam) plumes rising from Gígjökull, north of the eruption site.
Tephra fallout: Moderate ash-fall reported in the village of Vík (12:00 GMT), located 40 km south-east of Eyjafjallajökull.
Lightning: No detections today over the eruption site (18:00 GMT).
Noises: Booming sounds heard during the night and throughout the day up to 40 km south-east of the eruption site.
Additional note: Plumes of white steam extend partway down Gígjökull. Lava appears to have advanced further down Gígjökull overnight. Aerial observations at 18:25 GMT confirmed a dense cloud of ash between 3–3.3 km a.s.l. (10,000–11,000 ft) at 60° N, 16° W (~470 km south-east of Iceland). London VAAC have been informed about this siting.

Meltwater:
Before 16:00 GMT, discharge levels at the old Markarfljóts bridge, ~18 km downstream from Gígjökull, were noticeably lower than yesterday's levels. Between 16:00–17:00 GMT, a meltwater pulse was detected at the bridge; the flood was comparable in size to earlier floods on 30 April. At 19:40 GMT, web-camera images of Gígjökull showed plumes of steam rising from the glacier edge. Additionally, steam is rising from the delta that occupies the lake basin, suggesting
the discharge of near-boiling meltwater.

Conditions at eruption site:
Explosive activity has increased somewhat over the last 2–3 days; mass flux in the plume is estimated at 10–20 tonnes/s. A scoria cone continues to form at the eruption site. Lava is propagating down Gígjökull and most of its energy is being used to melt ice. As lava advances down-glacier, the size of the ice canyon increases. Large plumes of steam are produced where lava is in contact with ice and meltwater.

Seismic tremor:
During the last 30 hours, tremor levels have intensified. This intensification could be due to lava-ice interactions within Gígjökull, or conditions at the eruption site.

Earthquakes:
No locatable seismicity detected beneath Eyjafjallajökull.

GPS deformation:
Horizontal displacement towards the centre of the volcano, in addition to vertical subsidence. In the last couple of days increased subsidence has been observed at stations closest to the eruptive crater. These observations are consistent with deflation of a magma reservoir beneath Eyjafjallajökull, although the deformation pattern has changed somewhat.

Magma flow:
See overall assessment.

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




posted on May, 3 2010 @ 05:09 AM
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Continued report above:

Overall assessment:
The eruption is mixed, with the lava-producing phase being larger than the explosive phase. During the last 2–3 days, the plume has been darker and wider than in the preceding week. Tephra fall-out in the vicinity of Eyjafjallajökull has increased. From the location of the steam plume over Gígjökull, lava has advanced over 3 km north of the eruption. Steam plumes over the glacier edge from 19:40 GMT suggest that lava may have advanced even further. A rough order-of-magnitude estimate of lava volume can be obtained from the dimensions of the ice canyon. This estimate gives a lava production rate of-the-order 20 m3 /s (i.e. 50 tonnes/s). The explosive phase may be 10–20 tonnes/s. The explosive phase has increased somewhat in intensity during the last few days. Presently, there are no measurable indications that the eruption is about to end.



posted on May, 3 2010 @ 05:41 AM
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Still masses of water coming out at the bottom of the glacier... and you can, when it clears a bit, see several plumes near the bottom of the glacier - small ones.



posted on May, 3 2010 @ 05:50 AM
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Make that six quakes under Eyja today:

Monday
03.05.2010 05:09:49 63.620 -19.605 18.0 km 1.6 90.01 8.8 km SW of Básar

Monday
03.05.2010 05:09:48 63.657 -19.626 1.1 km 1.8 34.97 7.5 km WSW of Básar

Monday
03.05.2010 05:05:59 63.648 -19.618 2.7 km 1.9 90.01 7.5 km WSW of Básar

Monday
03.05.2010 05:03:26 63.630 -19.566 17.1 km 1.9 85.98 6.7 km SW of Básar

Monday
03.05.2010 04:59:18 63.633 -19.615 15.8 km 1.7 99.0 8.2 km SW of Básar

Monday
03.05.2010 04:58:05 63.631 -19.614 15.7 km 1.8 99.0 8.3 km SW of Básar



posted on May, 3 2010 @ 06:36 AM
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Some intervals on Poro cam just then - it looks like the lowermost huge steam vent has stopped and you see the gaping black hole with a couple of little plumes surrounding it...



posted on May, 3 2010 @ 06:45 AM
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It's so foggie on the cam
I hope they be gone in a second or so. Who go's with a huge ventilator there and blow's then away???



posted on May, 3 2010 @ 07:53 AM
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reply to post by MoorfNZ
 


Thanks for the time lapse vid, very interesting to see.

I noticed this one frame .... and thought is this wise being so close ?




posted on May, 3 2010 @ 08:00 AM
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reply to post by bigyin
 


can you post the link to the cam you use? the ones I have been using are down..

Thanks.



posted on May, 3 2010 @ 08:04 AM
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reply to post by broahes
 


Can't find link to that one just now but this one showing well right now

cam



posted on May, 3 2010 @ 08:10 AM
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reply to post by bigyin
 


thanks a lot for that. Star for you.




posted on May, 3 2010 @ 08:12 AM
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posted on May, 3 2010 @ 08:15 AM
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reply to post by sandri_90
 


And thanks to you too.


Also,

I like the new avatar, but the pup was so adorable.



posted on May, 3 2010 @ 08:18 AM
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reply to post by broahes
 


The cat was getting jealous.


I like the cam from vodafone, its angle is slightly different.



posted on May, 3 2010 @ 08:45 AM
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Looks like the skies are clearing, there also looks like there a lot more water and a lot less glacier than before too!



posted on May, 3 2010 @ 09:03 AM
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Here some pics from the air 1-5. you see the vents better this way!











posted on May, 3 2010 @ 04:35 PM
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Is the ash cloud chaos back? Scotland and Ireland shut down airspace amid new safety fears


www.dailymail.co.uk...


sure wish the clouds would go away



posted on May, 3 2010 @ 06:36 PM
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4 more earthquakes at eyja

03.05.2010 20:37:57 63.600 -19.651 17.4 km 1.9 99.0 11.0 km NW of Skógar

03.05.2010 21:06:38 63.680 -19.584 1.1 km 1.8 90.01 5.1 km W of Básar

03.05.2010 21:06:39 63.646 -19.606 16.7 km 1.8 99.0 7.1 km WSW of Básar

03.05.2010 21:17:22 63.612 -19.624 18.0 km 1.5 99.0 10.1 km SW of Básar

and wtf is up with this cam eldgos.mila.is...

[edit on 3-5-2010 by Mr Zeropoint]



posted on May, 3 2010 @ 07:51 PM
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reply to post by Mr Zeropoint
 


Up to 12 now




posted on May, 3 2010 @ 09:11 PM
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Originally posted by MoorfNZ
reply to post by Mr Zeropoint
 


Up to 12 now



twelve



ya'll ok this evening?



posted on May, 3 2010 @ 09:26 PM
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Originally posted by berkeleygal

Originally posted by MoorfNZ
reply to post by Mr Zeropoint
 


Up to 12 now



twelve



ya'll ok this evening?



Two more now - up to 14


Earthquake count:

* Magnitude less than 1: 0
* Magnitude 1 to 2: 13
* Magnitude 2 to 3: 1
* Magnitude more than 3: 0
* Total: 14

en.vedur.is...=table

[edit on 3-5-2010 by MoorfNZ]



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