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Re: Possible new volcanic eruption in Iceland

Unread postPosted: Thu 28 Aug 2014, 16:07:09
by dolanbaker
The vedur / en.vedur servers are VITAL to the Icelandic authorities responsible for Public Safety. Do not UNDER ANY CIRCUMSTANCE post a link / picture here or on ANY other website as this can cause and has caused their main server to crash!!! .


Saw this on another website, reposted here for the safety of the people of Iceland as a server crash may cause a delay in getting an alert out if anything was to happen!

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Thu 28 Aug 2014, 21:31:52
by toolpush
Need to change name of the thread.

She's a blowing

http://www.jonfr.com/volcano/

Eruption has started in the dyke area. The eruption appears clearly on Míla web camera. It can be viewed here.

More details later.

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Fri 29 Aug 2014, 00:01:58
by dohboi
Indeed: http://macedoniaonline.eu/content/view/25998/2/

It Begins: Iceland's Bardarbunga volcano Erupts

The magma has now breached the surface and the volcanic eruption has been confirmed by scientists in the field. The low frequency tremors suggests the eruption is located outside the glacier. The blaze can be observed in Mila’s webcameras, two of which are trained on Vatnajökull glacier’s Bárðarbunga area.

According to the National Commissioner of the Icelandic Police the eruption is thought to be coming from a 3-400m long fissure with direction to NE-SW according to first reports.

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Fri 29 Aug 2014, 00:07:56
by joewp
I just gotta say, kudos to the geologists and vulcanologists in Iceland. Predicting an eruption is really hard and they did a good job. No matter what calamity we're headed for, I'm constantly amazed at the work scientists have done to understand our natural world.

Now if everybody else had been listening to them, we wouldn't be in as bad of a predicament. Such is life.

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Fri 29 Aug 2014, 00:24:36
by dohboi
And there's an eruption on the other side of the world:
A volcano erupted Friday in eastern Papua New Guinea, spewing rocks and ash into the air and forcing the evacuation of local communities, seismologists and reports said


http://www.ad-hoc-news.de/volcano-erupt ... s/38531235

Equal and opposite reaction!!?? :roll:

(OK, it's not exactly on the precise antipode of Iceland, the opposite quadrant--S & E Hemispheres vs N & W).

ETA:

And...a red alert has been issued:

http://www.bbc.com/news/world-europe-28977773

The Icelandic Met Office has raised its aviation warning level near the Bardarbunga volcano to red after an eruption began overnight.

Scientists said a fissure eruption 1km (0.6 miles) long started in a lava field north of the Vatnajokull glacier.

Civil protection officials said Icelandic Air Traffic Control had closed the airspace above the eruption up to a height of 18,000ft (5,500m).

The volcano has been hit by several recent tremors.

The fissure eruption took place between Dyngjujokull Glacier and the Askja caldera, a statement from the Department of Civil Protection said.

The area is part of the Bardabunga system.

"Scientists who have been at work close to the eruption monitor the event at a safe distance," the statement added.

"The Icelandic Met Office has raised the aviation colour code over the eruption site to red."

It added that no volcanic ash had so far been detected but a coast guard aircraft was due to take off later to survey the site.


Here's a (nighttime) webcam picture of the eruption:

Image

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Fri 29 Aug 2014, 04:07:09
by dohboi
Image

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Fri 29 Aug 2014, 09:53:32
by dohboi
But now:

Alert downgraded to orange, airspace reopened to some traffic


http://www.abc.net.au/news/2014-08-29/i ... on/5707144

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Wed 03 Sep 2014, 10:38:17
by WildRose
This update sounds like there may soon be an eruption below the glacier.

http://www.jonfr.com/volcano/

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Wed 03 Sep 2014, 13:31:21
by Keith_McClary
Einar Gudmann aerial photos Sept. 1 :
http://gudmann.photoshelter.com/gallery ... z3iKC4294s

Re: Possible new volcanic eruption in Iceland

Unread postPosted: Wed 03 Sep 2014, 13:35:21
by dohboi
Here is the latest post right now from Rose's link above:

This information is going to get outdated quickly. This is current events in Báðarbunga volcano.

> Rift valley has formed south of the eruption. Part of this rift valley is not under the glacier. Most of this rift valley is under the glacier, were the glacier is thin the glacier has formed a cauldron that is around 1 km wide and several meters deep. There is a risk of eruption in the newly formed rift valley.

> Harmonic tremor suggest that a glacier flood is under way from Bárðarbunga volcano. What is happening is unclear at the moment. Scientists and press people have been told to evacuate the area due to this risk.

> More magma is going into the dyke than is erupting from it. This has increased the pressure inside the dyke.

> Largest earthquake since midnight had the magnitude 5,5.

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 05:12:16
by M_B_S
Image

http://volcanocafe.wordpress.com/2014/0 ... a-caldera/

So, what will most likely happen at the caldera? For starters, it is normal for rapidly deflating large magma chambers to cause deflation caldera formations. Normally this does not lead to an eruption, or lead to just small eruptions since a deflating caldera floor is a sign of loss of pressure.

In this case we need to take into account that there are two large pools of water below the ice over the caldera floor, and that the ice in and of itself can rapidly transform into water. If that water finds a way down into the extremely hot magma reservoir the water will instantly transform into supercritical steam and a steam explosion will occur. In that case pure physics take over; if a small amount of water hits a small area of hot material a fairly benign explosive event happens. If a large amount of water hits a small area of hot material a prolonged event follows. If a small amount of water hits a large area of hot material a short rapid explosive event happens. And if a large amount of water finds a large area of warm material I would prefer to be more than 50 kilometers away.
CARL
************


So its like a poker game all in or not ........ nobody knows.

M_B_S

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 12:44:20
by ROCKMAN
dohboi - As far as anything giving some indication as to the timing take this fact into account: volcanologist obviously know more about such matters than anyone else. And yet of all the scientific fields volcanologists have the highest mortality rate.

IOW if you’re standing on a volcano next to a volcanologist and he says it’s safe…run like hell!

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 13:06:40
by dohboi
"of all the scientific fields volcanologists have the highest mortality rate."

Ouch!

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 13:30:56
by ROCKMAN
dohboi - And it's typically poison gas that gets them and not the lava or an explosion.

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 13:45:24
by dohboi
I'm not sure which I'd prefer. IIRC, they decided not to use H2S for capital punishment--even though it is at least as deadly as cyanide--because it was considered cruel and unusual punishment. But then being burned alive is no bed of roses either!

THE Volcano Thread Pt. 2

Unread postPosted: Mon 08 Sep 2014, 16:05:17
by WildRose
This guy is saying that he thinks an eruption in the caldera is imminent - he gives it a 96% or greater chance of happening soon. Note the excerpt below, caldera floor is buckling. Glacier is up to 850 meters thick, which means there's a lot of flooding and ash potential if/when it erupts, correct? Also, S02 levels are highest in eastern Iceland since they started measuring in 1970.

http://www.jonfr.com/volcano/

The caldera in Bárðarbunga volcano is dropping and it is dropping fast. According to latest news from Rúv (see link below) the caldera is dropping up to 90 cm/day. That is a huge drop for a mountain. There is also clue that central part of the caldera floor is now so soft that it no longer breaks and creates earthquakes, it is just buckling under the strain. This increases the risk of eruption in the central caldera up to almost certainty levels (for me that is 96+% chance of happening). The latest news from Rúv tell that the thickness of the glacier in the central part of the glacier is up to 850 meters thick. Since last Saturday the caldera has dropped 2 – 3 meters, meaning that current drop is now around 18,5 meters.

Re: THE Volcano Thread (merged)

Unread postPosted: Mon 08 Sep 2014, 16:07:31
by M_B_S
Sorry Bad news for iceland:

Current status on Báðarbunga volcano eruption

Eruption continues in Holuhraun. Most of the craters have stopped erupting for now. The main craters continue to erupt.
It is my view that eruption under the glacier is imminent. That eruption would take place close to the location of today magnitude 4,5 and 3,0 took place today. When it might start is impossible to know.
Earthquake activity continues in Bárðarbunga volcano. With largest earthquakes today having magnitude 5,0. Most of the earthquake take place on the caldera rim, since the caldera is sinking into the crust. More on this below [1].
The lava field is now going into Jökulsá á Fjöllum. It is currently crossing the glacier river and creating a dam in the process. Only steam has been seen in this process.
Risk of eruption in Bárðarbunga volcano slopes is extremely high. There has not been any eruption in Báðarbunga volcano slopes since 23-August-2014.
GPS instruments have now be installed on top of Bárðarbunga volcano today. This is to measure exactly what is going on inside the volcano.

There is less blue haze today. There is concern that it is going to have effect on people, animals and plants if the blue haze stays for long time in any given area. Acid rain is a big concern at the moment. The SO2 levels in eastern Iceland have been the highest since measurements started in Iceland back in 1970.
There is high concentration of gas in the lava around the eruption site. It is in fact so high that it has put the geologist that are working there at great risk.

http://www.jonfr.com/volcano/?p=4935
******************************************************

And the worst: the caldera is collapsing the static of the vulcano Barbardunga collapses @ 90cm / day. The reason is the trillion ton glacier on the top and the magma melting the rock on base.

Iceland must prepare for the worst:

Maybe all Icelanders will be evacuated: 300.000 people

http://en.wikipedia.org/wiki/Iceland

M_B_S

Re: THE Volcano Thread Pt. 2

Unread postPosted: Mon 08 Sep 2014, 21:57:55
by dohboi
This seems rather...ominous:

http://www.dailymail.co.uk/sciencetech/ ... bunga.html
An incredible whirlwind of gas and fire, swirling 3,280ft (1km) into the air, has been captured above Iceland’s Bardarbunga volcano.

The stunning footage was taken last week by an aircraft-fitted infrared camera designed to monitor potentially dangerous ash clouds.


video here: http://abc7chicago.com/weather/extreme- ... no/299491/

And if you prefer photos from space:
http://news.yahoo.com/iceland-eruptions ... 09374.html

Re: THE Volcano Thread Pt. 2

Unread postPosted: Mon 08 Sep 2014, 22:17:11
by WildRose
Latest update from blog I quoted above, for what it's worth:

This is a short notice. I think that eruption has started under the glacier in Bárðarbunga or maybe in the dyke area. I base this on the change in harmonic tremor that is now taking place. Please note that this has not yet been confirmed by Icelandic Met Office or by Rúv in Iceland at the moment. So this is unconfirmed reports from me at current time (01:13 UTC on 9-September-2014).

http://www.jonfr.com/volcano/

Re: THE Volcano Thread Pt. 2

Unread postPosted: Mon 08 Sep 2014, 22:21:53
by dohboi
Keep the updates coming. If the area is now completely cleared out, I guess we won't get any up close footage. Or are there cameras set up in the area taking pictures automatically?