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Bárðarbunga and Askja - Volcanic Activity


lorenzo

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Posted
  • Location: Kingdom of Fife: 56.2º N, 3.2º W
  • Location: Kingdom of Fife: 56.2º N, 3.2º W

It's amazing how close to a straight line that second (longer term) graph is.

 

I have been wondering if the spikes on the short term graph are actually caused by surface waves crossing the caldera - but what do I know, I'm only the gardener!

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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

not much to report tonight

 

quake at 12,27 probably around 4,5

http://www.emsc-csem.org/Earthquake/alert/?id=UVN05;LDG&date=2014-11-02

 

2 other smaller ones around 1,57 and 2, 12 but will probably update tomorrow

 

cams are working now but no visibility tonight

 

von.png


gps looks fairly stable tonight up to time of reporting

 

barc_gps_3d_is.png

Edited by john pike
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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

Morning Bardabarians i'm back :yahoo::D

 

so is cam 1

 

http://www.livefromiceland.is/webcams/bardarbunga

 

Sunday
02.11.2014 11:12:12 64.671 -17.470 2.2 km 4.5 99.0 4.4 km NE of Bárðarbunga Sunday
02.11.2014 08:12:12 64.672 -17.441 5.1 km 4.1 99.0 5.4 km NE of Bárðarbunga Sunday
02.11.2014 06:55:34 64.682 -17.512 7.7 km 3.9 99.0 4.7 km N of Bárðarbunga Sunday
02.11.2014 06:53:02 64.682 -17.488 6.9 km 4.0 99.0 4.9 km NNE of Bárðarbunga Sunday
02.11.2014 04:30:18 64.672 -17.447 7.4 km 4.6 99.0 5.2 km NE of Bárðarbunga Sunday
02.11.2014 00:27:02 64.671 -17.449 3.5 km 4.5 99.0 5.1 km NE of Bárðarbunga

 

Kre not working!

 

post-16960-0-16212700-1414928078_thumb.g

 

some other interest in the atlantic that happened an hour or so ago which might of gave bunga a wake up call just now

 

http://www.emsc-csem.org/Earthquake/earthquake.php?id=406726

 

Edit:a 3.8 unchecked @ Kröfluvirkjun

 

Sunday
02.11.2014 11:19:52 65.540 -17.180 4.7 km 3.8 50.5 27.3 km SW of Kröfluvirkjun

 

11:12:08 55 1759

 

http://platformsthatwork.com/bardies/quakesonaplane.php

 

a 4.2

 

Sunday
02.11.2014 11:20:24 64.666 -17.452 1.6 km 4.1 99.0 4.6 km NE of Bárðarbunga

 

 

ok,back later.

Edited by Allseasons-si
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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

Afternoon Barda chums :D

 

biggy incoming

 

16:05:36 55 4890

 

dynpost-16960-0-08438500-1414946128_thumb.g vonpost-16960-0-46406700-1414946131_thumb.g

 

two 2+'s unchecked here

 

http://baering.github.io/

 

a 5.2 here,so could be bigger

 

http://www.emsc-csem.org/Earthquake/earthquake.php?id=406759

 

strain counts are big too

 

post-16960-0-95202500-1414946327_thumb.p

post-16960-0-89799800-1414946337_thumb.p

 

http://hraun.vedur.is/ja/strain/1sec/index.html

 

grims has the biggest

 

post-16960-0-42148800-1414946839_thumb.p

 

back in a bit.

 

 

Edited by Allseasons-si
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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

quakes at north mid atlantic ridge

 

M 4.8 - NORTHERN MID-ATLANTIC RIDGE - 2014-11-02 06:14:35 UTC

 

M 5.3 - NORTHERN MID-ATLANTIC RIDGE - 2014-11-02 09:03:03 UTC

 

M 4.9 - NORTHERN MID-ATLANTIC RIDGE - 2014-11-02 16:27:29 UTC

all at 5km deep

 

406761.global.thumb.jpg

 

http://www.emsc-csem.org/Earthquake/

 

questiojn now

 

make iceland worse or slow it down???

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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

http://www.visir.is/flugfarthegar-horfa-beint-ofan-i-eldspuandi-giginn/article/2014141109950

 

short video in link

 

----------------------------------------

 

holuhraun eruption reaches global scale
12:20 31. OKTÓBER 2014
  •  
AR-141039805.jpg?MaxW=649&NoBorder=1
MYND/MORTENRIISHUUS
Svavar Hávarðsson skrifar:

It's now clear that the Holuhraun eruption is the greatest eruption in Iceland in more than 230 years. This eruption some unique qualities when compared to other Icelandic eruptions through the ages - but also on a global scale.

Earlier this week scientists announced with certainty that the new still-growing lava field north of the Vatnajökull glacier, whom many want to be called Nornahraun (Witches's lavafield) is larger than any other lava field since the Laki eruption in 1783-1784 - an eruption that had greater and more dire consequences than most other eruptions in recorded history.

The lava field now covers 65 square kilometers and is still growing rapidly.

FIVE ERUPTIONS IN THE AREA
Volcanologist Ãrmann Höskuldsson says that the eruption has kept a steady flow since Oct. 6th and that it is impossible to predict when it will stop. As has been stated before it is considered a given that another eruption will soon begin in the area, considering the constant activity in the area. It is now accepted that five eruptions have taken place in the area; two sub-glacial ones, two smaller eruptions north of Dyngjujökull and then the one that's currently in action.

"Although the lava flow has reduced somewhat, it's still over 100 square meters per second, which equals the Skjálfandi river during summer time. The flow was immense in the beginning and was triple its current volume," states Ãrmann and adds that the lava flow covered 20 square meters of land per second.

Ãrmann agrees that the eruption is of a historic scale, and adds that it made the history books in the first couple of weeks. "People tend to measure volcanic eruptions by the cubic meter volume that emerges from the volcano, but that's not a good scale of measurement. It's more about the speed of things. You can talk about big volume volcanoes that took decades or even centuries to accumulate. In this case we're getting an incredible amount in an almost absurdly short amount of time.

In terms of volume Holuhraun beat Fimmvörðuháls before noon on the first day, but the Fimmvörðuháls eruption lasted for two weeks. During the first week we realized that the Holuhraun eruption was something we'd never dealt with before." Ãrmann believes that the total volume of the lava field is now around a million cubic kilometers, but the Hekla eruption in 1947, which is often used as a comparison for large eruptions in Iceland, had a much lesser lava field volume. "It's surpassed everything that we know of."

GAS REMAINS A RISK

The gas pollution from the caldera is currently the biggest concern, but in the beginning the force of the eruption and the thermal uptake was so great that the gas was launched high into the sky where no one noticed it. Later, as the force of the eruption diminished, the gas has lain over the land and been a nuisance.

There's no end in sight to this problem, in fact experts like Þorsteinn Jóhannsson at the Icelandic Environmental Agency are predicting the exact opposite - that the winter weather will escalate the problem, especially during the calm frost. "This problem will only get worse with time and it is unlikely that the eruption will grow in force and start kicking the gas to a higher altitude."
ICELAND AND THE WORLD
Even when the Holuhraun eruption is compared to eruptions all over the world the facts remain the same. Ãrmann states "We'd have to go way back, there's a huge eruption in the Canary Islands during the middle of the 18th century that's probably larger than this one. So even on a global scale the Holuhraun eruption is making history. Simply put it's the biggest lava eruption Mankind has seen since the 18th century."                                                                                                                                                                             

FIREHEART
When asked further about the eruption, Ãrmann notes that the eruption has already lasted longer than both the Fimmvörðuháls and Eyjafjallajökull eruptions combined. Ãrmann also adds that the magma that's coming up is unusually hot; it's around 1200 C° which is around 200 C° greater than magma coming from other known eruptions.
"These facts support the theory that this is a tear from the fireheart itself, the hotspot under the country. This is coming straight from the mantle and up to the surface. This makes it very difficult to predict when the eruption will end.

BÃRÃARBUNGA
But that's not all. Ãrmann mentions that Icelandic geologists have poured over every text and historic reference they know of, looking for examples of a series of events anything like that which the nation has been seeing in Bárðarbunga for the past couple of months.
"Bárðarbunga is a huge concern and we've never seen anything like this. The large amount of strong earthquakes, sometimes many a day, for days and weeks on end.

We've looked up every observed volcano, and this is unprecedented. That makes the big picture much harder to see, because we don't know what it all means," says Ãrmann who adds that the data that has been collected from the Holuhraun eruption will take several years to work through. No one can claim when that data gathering will end though, as the Holuhraun eruption is surely only the beginning of a far longer series of events in and around the Vatnajökull glacier.

 

http://www.visir.is/holuhraun-eruption-reaches-global-scale/article/2014141039805

 

fascinating

 

 

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Posted
  • Location: Aldborough, North Norfolk
  • Location: Aldborough, North Norfolk

http://www.visir.is/flugfarthegar-horfa-beint-ofan-i-eldspuandi-giginn/article/2014141109950

 

short video in link

 

----------------------------------------

 

holuhraun eruption reaches global scale

News in english

12:20 31. OKTÓBER 2014

  •  

AR-141039805.jpg?MaxW=649&NoBorder=1

MYND/MORTENRIISHUUS

Svavar Hávarðsson skrifar:

It's now clear that the Holuhraun eruption is the greatest eruption in Iceland in more than 230 years. This eruption some unique qualities when compared to other Icelandic eruptions through the ages - but also on a global scale.

Earlier this week scientists announced with certainty that the new still-growing lava field north of the Vatnajökull glacier, whom many want to be called Nornahraun (Witches's lavafield) is larger than any other lava field since the Laki eruption in 1783-1784 - an eruption that had greater and more dire consequences than most other eruptions in recorded history.

The lava field now covers 65 square kilometers and is still growing rapidly.FIVE ERUPTIONS IN THE AREA

Volcanologist Ãrmann Höskuldsson says that the eruption has kept a steady flow since Oct. 6th and that it is impossible to predict when it will stop. As has been stated before it is considered a given that another eruption will soon begin in the area, considering the constant activity in the area. It is now accepted that five eruptions have taken place in the area; two sub-glacial ones, two smaller eruptions north of Dyngjujökull and then the one that's currently in action.

"Although the lava flow has reduced somewhat, it's still over 100 square meters per second, which equals the Skjálfandi river during summer time. The flow was immense in the beginning and was triple its current volume," states Ãrmann and adds that the lava flow covered 20 square meters of land per second.

Ãrmann agrees that the eruption is of a historic scale, and adds that it made the history books in the first couple of weeks. "People tend to measure volcanic eruptions by the cubic meter volume that emerges from the volcano, but that's not a good scale of measurement. It's more about the speed of things. You can talk about big volume volcanoes that took decades or even centuries to accumulate. In this case we're getting an incredible amount in an almost absurdly short amount of time.

In terms of volume Holuhraun beat Fimmvörðuháls before noon on the first day, but the Fimmvörðuháls eruption lasted for two weeks. During the first week we realized that the Holuhraun eruption was something we'd never dealt with before." Ãrmann believes that the total volume of the lava field is now around a million cubic kilometers, but the Hekla eruption in 1947, which is often used as a comparison for large eruptions in Iceland, had a much lesser lava field volume. "It's surpassed everything that we know of."GAS REMAINS A RISK

The gas pollution from the caldera is currently the biggest concern, but in the beginning the force of the eruption and the thermal uptake was so great that the gas was launched high into the sky where no one noticed it. Later, as the force of the eruption diminished, the gas has lain over the land and been a nuisance.

There's no end in sight to this problem, in fact experts like Þorsteinn Jóhannsson at the Icelandic Environmental Agency are predicting the exact opposite - that the winter weather will escalate the problem, especially during the calm frost. "This problem will only get worse with time and it is unlikely that the eruption will grow in force and start kicking the gas to a higher altitude."ICELAND AND THE WORLD

Even when the Holuhraun eruption is compared to eruptions all over the world the facts remain the same. Ãrmann states "We'd have to go way back, there's a huge eruption in the Canary Islands during the middle of the 18th century that's probably larger than this one. So even on a global scale the Holuhraun eruption is making history. Simply put it's the biggest lava eruption Mankind has seen since the 18th century."                                                                                                                                                                             FIREHEART

When asked further about the eruption, Ãrmann notes that the eruption has already lasted longer than both the Fimmvörðuháls and Eyjafjallajökull eruptions combined. Ãrmann also adds that the magma that's coming up is unusually hot; it's around 1200 C° which is around 200 C° greater than magma coming from other known eruptions.

"These facts support the theory that this is a tear from the fireheart itself, the hotspot under the country. This is coming straight from the mantle and up to the surface. This makes it very difficult to predict when the eruption will end.BÃRÃARBUNGA

But that's not all. Ãrmann mentions that Icelandic geologists have poured over every text and historic reference they know of, looking for examples of a series of events anything like that which the nation has been seeing in Bárðarbunga for the past couple of months.

"Bárðarbunga is a huge concern and we've never seen anything like this. The large amount of strong earthquakes, sometimes many a day, for days and weeks on end.

We've looked up every observed volcano, and this is unprecedented. That makes the big picture much harder to see, because we don't know what it all means," says Ãrmann who adds that the data that has been collected from the Holuhraun eruption will take several years to work through. No one can claim when that data gathering will end though, as the Holuhraun eruption is surely only the beginning of a far longer series of events in and around the Vatnajökull glacier.

 

http://www.visir.is/holuhraun-eruption-reaches-global-scale/article/2014141039805

 

fascinating

As you say fascinating. Interesting the higher temperatures on the lava. I wonder if this has changed the nature of the eruption and that the original deflation of the caldera has given way to a direct lava source from the mantle.

I still wonder about all the quakes in the caldera, what on earth is the effect there?

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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

hi all

 

M 5.2 - ICELAND - 2014-11-02 16:05:49 UTC

http://www.emsc-csem.org/Earthquake/earthquake.php?id=406759

 

probably call it 5.3 when imo check it

 

Evening John

 

5.3 it is then,well done :clapping::)

 

look where it is though, @ Kistufell

 

Sunday

02.11.2014 16:05:42 64.709 -17.311 4.0 km 5.3 99.0 9.3 km SSW of Kistufell

 

also there is a 3.7 unchecked which also could be a big one

 

Sunday

02.11.2014 17:38:59 64.610 -17.410 1.1 km 3.7 50.5 6.5 km ESE of Bárðarbunga

 

Kre working again now,

 

post-16960-0-17386200-1414956017_thumb.g

 

and von is through the roof

 

post-16960-0-42232200-1414955816_thumb.g

 

 

 

 

Edited by Allseasons-si
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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

hi all

 

when i saw the csem update i noted it was at a slightly different location (kistufell)

 

a tiny bit unsure what that means at present so i think we need to see if a swarm of sorts hits there

 

one thing with this

 

its very confusing

Edited by john pike
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Posted
  • Location: Western Isle of Wight
  • Weather Preferences: Snow, Storm, anything loud and dramatic.
  • Location: Western Isle of Wight

hi all

 

when i saw the ecm update i noted it was at a slightly different location (kistufell)

 

a tiny bit unsure what that means at present so i think we need to see if a swarm of sorts hits there

 

one thing with this

 

its very confusing

The first dike intrusion back in August is still at full temperature almost under kistufell, could well reactivate with a fresh pressure pulse...

 

Talking of pressure look at this http://www.emsc-csem.org/Earthquake/Map/zoom.php?key=45&typ=euro#2 I wonder are things going to get unusual soon? This is interesting, but worrying.Some would say that this has nothing to do with Iceland, well maybe it has, we will see.

 

The larger quakes have a long tale...post-4726-0-17329600-1414956978_thumb.jp these days.

 

Location with thanks to the IMO post-4726-0-06695400-1414957476_thumb.jp  http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2949 not quite in the August dike intrusions (scroll down to see). Could be significant, maybe even eruption starting or changing, maybe... 

Edited by Rustynailer
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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

hi all

 

when i saw the csem update i noted it was at a slightly different location (kistufell)

 

a tiny bit unsure what that means at present so i think we need to see if a swarm of sorts hits there

 

one thing with this

 

its very confusing

 

Yes very comfused,there hasn't been that many swarms under barda just big EQ's,as you say,that 5.3 is in a odd place,maybe a new eruption @ the edge of the glacier!

 

we will just sit and wait and see what happens.

 

 

Edit: none of the smaller ones have been checked in the last 12 hours,

 

http://baering.github.io/

 

2 November 2014 12:00 - from geoscientist on duty

About 100 earthquakes have been observed in the Bárðarbunga area past 24 hours, slightly more than the day before. No quake was over magnitude five. Over ten quakes were over magnitude four, the largest M4.6 at 04:30. Activity is low in the intrusion. Webcameras show considerable activity at the eruption site.

 

http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2947

Edited by Allseasons-si
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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

 

 

A nice read that John,the more i read about iceland,the more i want to go there,when all this is over of cause lol.

 

Thingvellir National Park looks a very nice place to visit amongst the most of them,i am drooling now :laugh:

 

maybe a 3+ incoming

 

Sunday

02.11.2014 20:27:43 64.620 -17.390 1.1 km 3.6 50.5 6.9 km ESE of Bárðarbunga

 

but taking a while to verify.

Edited by Allseasons-si
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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

interesting so2 release earlier

 

northern_atlantic_prev.gif

 

northern_atlantic.gif

 

http://satepsanone.nesdis.noaa.gov/pub/OMI/OMISO2/northern_atlantic.html

 

as no cams its hard to say what happened there

 

anyway updates are sketchy again but the graph for  00.47 looks quite large

 

more on that tomorrow (sorry today)

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Posted
  • Location: Solihull, West Midlands. - 131 m asl
  • Weather Preferences: Sun, Snow and Storms
  • Location: Solihull, West Midlands. - 131 m asl

Morning all..

Strange events overnight on the recordings.

The GPS seems to have flatlined for the 90 mins average line (blue) before bursting into life about 2 hours ago. The current line (red) seems to have been overactive with a massive leap before settling down again when the blue started behaving normally. Weather related?

Severtal quakes over m3 in the last 4hours so bau there.

Cam1 appears to be online this morning but looks as though it is tilted at the sky!

I can just make out what seems to be the 'plume' on its normal right hand side, but only the top of it on the bottom edge of the screen. The rest of the screen seems to be filled with the haze/clouds from the fissure.

Cam 2 shows the blue fuzzy screen as per the last 2 days.

MIA

Edited by Midlands Ice Age
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Posted
  • Location: Solihull, West Midlands. - 131 m asl
  • Weather Preferences: Sun, Snow and Storms
  • Location: Solihull, West Midlands. - 131 m asl

Huge amount of shaking on Bard2 at the moment.

I assume it is weather related!

Also the eruption of the fissure looks to be still very large.

I do not see any reduction in the eruption at all

MIA

Edited by Midlands Ice Age
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Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)

Monday

03.11.2014 18:06:47 64.683 -17.466 7.0 km 4.4 99.0 5.6 km NNE of Bárðarbunga Monday

03.11.2014 17:12:34 64.675 -17.473 0.1 km 3.8 99.0 4.7 km NE of Bárðarbunga

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table

 

imo just updated these

 

the 3,8 only 0.1km deep

thats very shallow

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Posted
  • Location: Kingdom of Fife: 56.2º N, 3.2º W
  • Location: Kingdom of Fife: 56.2º N, 3.2º W

Monday

03.11.2014 18:06:47 64.683 -17.466 7.0 km 4.4 99.0 5.6 km NNE of Bárðarbunga Monday

03.11.2014 17:12:34 64.675 -17.473 0.1 km 3.8 99.0 4.7 km NE of Bárðarbunga

http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table

 

imo just updated these

 

the 3,8 only 0.1km deep

thats very shallow

 

Is that 3.8 @ 0.1km above sea level?

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Posted
  • Location: Hoyland,barnsley,south yorkshire(134m asl)
  • Weather Preferences: severe storms,snow wind and ice
  • Location: Hoyland,barnsley,south yorkshire(134m asl)

Evening Bunga's :D

 

i cannot understand why the cam is shaking like that,it doesn't look that windy viewing the fissure,poss tremors!

 

http://www.livefromiceland.is/webcams/bardarbunga-2/

 

cam 1 looks nice,although not 100% vis

 

http://www.livefromiceland.is/webcams/bardarbunga/

 

latest EQ

 

Monday
03.11.2014 21:49:26 64.679 -17.516 7.1 km 4.6 99.0 4.4 km N of Bárðarbunga

 

latest gps sugests that it looks calm there weather wise with not much grey noise,and looks to be flattening out somewhat too,has the caldera finaly hit rock bottom!

 

post-16960-0-42017800-1415055233_thumb.p

Edited by Allseasons-si
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