Volcanic Eruption

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Re: Volcanic Eruption

Post by rwo power on Tue Sep 23, 2014 4:17 am

I just love to watch this:


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Re: Volcanic Eruption

Post by Lord Awesome on Tue Sep 23, 2014 7:25 am

Iceland definitely deserves to be called the land of Ice & Fire.

Impressive.

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Re: Volcanic Eruption

Post by rwo power on Fri Sep 26, 2014 2:49 am

Iceland Volcano Update:

Webcam Bárðarbunga 2

Astonishing lava volumes:
The lava flows erupted since the beginning cover around 37 square km and comprise a total volume of 0.4-0.6 cubic kilometers. If compared to an explosive eruption (for which the VEI scale was designed) using the Volcanic Explosivity Index (VEI) scale, the eruption has already reached the category VEI 5. It has so far erupted about the same volume of magma as the 1980 Mt. St. Helens eruption.
The discharge rate was estimated to 250-350 cubic meters per second. For a full day (86400 seconds), this corresponds to a cube measuring approx. 300 m on its sides. It would be enough to fill a soccer field with a pile 2-3 km tall of lava!
Source: http://www.volcanodiscovery.com/bardarbunga/news/48070/Bardarbunga-volcano-update-Eruption-continues-with-steady-and-large-lava-output-rate.html

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Re: Volcanic Eruption

Post by sportsczy on Fri Sep 26, 2014 10:43 am

When lava starts flowing and gas comes out, it means pressure is being released... greatly decreases the chance of a bigger event (although it can happen). Much more worrisome if there was just steam and earthquakes. That would have meant something is trying to get out and hadn't found a way yet...

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Re: Volcanic Eruption

Post by rwo power on Fri Sep 26, 2014 11:31 am

Well, we are talking about Iceland here - Iceland is in a very special situation unlike all the volcanoes on the Ring of Fire that sit on subduction zones where one continental plate disappears under another and thus the plate is molten, transports water underneath, too and thus the evaporated water causes magma to rise up and show up as volcanoes.

Iceland is the only location where the Mid-Atlantic Ridge is visible above the ocean and where you can observe the continental plates actually drift apart. So Iceland has in fact indefinite amounts of magma underneath as it belongs to the areas where new land is "created".

If you look at eruptions like the Laki fissure eruption in 1783, one can have eruptive processes that go on for many months and produce enormous amounts of basalt lava (around 14 cubic kilometres estimated in the Laki eruption, for example).

Moreover, in Iceland many of the volcanoes are located under some hundred metres of ice, thus there can be an enormous explosion if one of the covered volcanoes decides to blow. That was the reason why the Eyjafjallajökull eruption caused the upset in the flight traffic - it was one of the volcanos located under a glacier and the eruption was a bit stronger due to all the evaporated ice  and not really due to the amount of lava.

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Re: Volcanic Eruption

Post by rwo power on Sun Sep 28, 2014 6:51 am

As I just can't get enough of cool volcano pics (my desktop background currently shows a fantastic eruption of Stromboli, by the way), here are some fresh pics captured from the webcam Bárðarbunga once more:

Night:


Dawn:


Day:



By the way, Stromboli is usually active as well, albeit not as spectaluar at the moment: http://www.ct.ingv.it/en/webcam-aeolian-islands.html

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Re: Volcanic Eruption

Post by rwo power on Sat Oct 04, 2014 1:51 am

Bárðarbunga update:





I love this prediction about how the eruption will likely go on by VolcanoDiscovery.com:

"The most likely scenarios are that 1) it might go on for a while to come, gradually decrease; 2) it could result in catastrophic collapse of the caldera with a resulting potentially large explosive eruption there; 3) it could open new eruptive fissures above the intrusion, possibly under the ice and cause large floods and ash emissions. It could as well do something completely different."

Source: http://www.volcanodiscovery.com/bardarbunga/news/48262/Bardarbunga-volcano-update-no-significant-changes-in-ongoing-eruption.html

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Re: Volcanic Eruption

Post by rwo power on Mon Oct 20, 2014 2:33 am

Looks like finally the weather has cleared and/or someone cleaned the webcams - here are some fresh pics of the still ongoing eruption that doesn't really show any signs of slowing down.

Webcam Bárðarbunga 1:


Webcam Bárðarbunga 2:


"The eruption continues from the Holuhraun fissure with an amazing lava output at approx. 350 cubic meters per second. [...] The lava flow field continues to expand mainly to the north and east and cover now more than 55 square kilometers, with an estimated volume of approx. 0.77 cubic km." o_O

Source: http://www.volcanodiscovery.com/bardarbunga/news.html

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Re: Volcanic Eruption

Post by rwo power on Sat Oct 25, 2014 4:20 am







"The volcanic eruption in Holuhraun continues at similar rate, and has now been going on for more than 50 days. The erupted lava flow volume approaches 1 cubic kilometers and the lava flows now cover over 63 square km. A large lava lake above the central section of the fissure vent has formed and feeds a wide river of lava."

Source: http://www.volcanodiscovery.com/bardarbunga/news/48556/Bardarbunga-volcano-update-Eruption-continues-with-large-lava-flows-increasing-seismic-activity-at-c.html

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Re: Volcanic Eruption

Post by rwo power on Mon Nov 17, 2014 1:10 am

I was just about to complain that the Bárðarbunga webcams were stuck full of snow all the last time and I couldn't watch the cool fissure eruption anymore, when I saw that finally they were delivering pictures again today!

Webcam Bárðarbunga 1:


Webcam Bárðarbunga 2:


VolcanoDiscovery.com wrote:Nov 6: The Holuhraun fissure eruption continues with amazing stability. By now, more than 1 cubic kilometers of magma has been erupted and covers almost 70 square km (which implies an average thickness of 15 meters).
http://www.volcanodiscovery.com/bardarbunga/news/48888/Bardarbunga-volcano-update-Eruption-has-produced-over-1-cubic-km-of-lava.html

VolcanoDiscovery.com wrote:Nov 9: The volcanic eruption at Holuhraun gives no signs of weakening and continues to eject an impressive lava fountain from the central Baugur crater at a rate similar to the past few weeks. This record-breaking eruption started on the 31st of August 2014 and formed a more than 17 km long lava flow. Using the successive outlines of this lava flow as drawn on a radar image from the Icelandic Coast Guard, researchers from the Institute of Earth Sciences estimated that by now the lava has covered an area of 70 km².
Source: http://www.volcanodiscovery.com/bardarbunga/news/48951/Bardarbunga-volcano-update-Continuing-eruption-formed-a-70-km-lava-flow-and-caused-44-m-of-caldera-s.html


Morning view:

Webcam Bárðarbunga 1:


Webcam Bárðarbunga 2:


Just wow: http://vimeo.com/111344670

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Re: Volcanic Eruption

Post by rwo power on Fri Nov 21, 2014 9:56 pm

Webcam Bárðarbunga 2:

Continues to look cool


Update 2014/11/23:
Here are some pics from the webcams at noon:

Webcam Bárðarbunga 1:


Webcam Bárðarbunga 2:

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Re: Volcanic Eruption

Post by rwo power on Mon Nov 24, 2014 9:29 pm

More GeoPorn Razz

Webcam Bárðarbunga 1:


Webcam Bárðarbunga 2:

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Re: Volcanic Eruption

Post by RealGunner on Mon Nov 24, 2014 9:34 pm

Will it ever end

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Re: Volcanic Eruption

Post by rwo power on Mon Nov 24, 2014 10:49 pm

Well, one day it will end - in the worst case it will take until the Iceland plume ends up elsewhere due to plate tectonics ^^

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Re: Volcanic Eruption

Post by rwo power on Wed Dec 03, 2014 2:20 am

Cool video from a flight over the Holuhraun fissure eruption in the end of November 2014:
Spoiler:

Older footage from September 2014:
Spoiler:
Spoiler:
Spoiler:

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Re: Volcanic Eruption

Post by rwo power on Fri Dec 05, 2014 11:25 pm

Another beautiful video taken from a flight over the volcano yesterday:
https://www.facebook.com/video.php?v=376433082517621

This eruption in Iceland has by now created the largest lava flow on earth since the Laki fissure eruption in 1783.

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Re: Volcanic Eruption

Post by RealGunner on Sat Dec 06, 2014 2:05 am

Looks like Modor hmm

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Re: Volcanic Eruption

Post by rwo power on Sat Dec 06, 2014 9:16 am

You know that Iceland has trolls and elves? They even have an officially assigned person for the matters of trolls and elves. :coffee:

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Re: Volcanic Eruption

Post by rwo power on Mon Jan 19, 2015 2:16 am

Webcam Bárðarbunga 2:


For those who wondered (or not) - the eruption of Bárðabunga in Iceland is still going on without break. By now the lava field is covering more than 84 square kilometers.

Source: http://www.volcanodiscovery.com/bardarbunga.html

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Re: Volcanic Eruption

Post by rwo power on Tue Feb 03, 2015 7:08 am

Webcam Bárðarbunga 2:


Until now, the lava output of the Bárðarbunga volcano reached approx. 1.4 cubic kilometers of lava, with the current output being in the range of 100 m³ per second. By now, the lava output has surpassed that of the 1980 Mt.St.Helen's eruption that yielded 1.2 cubic kilometers.

If you compare the Bárðarbunga eruption to an explosive eruption, it would be classed as VEI 5 (to compare: Eyjafjallajökull 2010: VEI 4; Mt.St.Helen's 1980: VEI 5 and Krakatoa 1883: VEI 6).

Source: http://www.volcanodiscovery.com/bardarbunga.html

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Re: Volcanic Eruption

Post by RealGunner on Fri Apr 24, 2015 12:01 am

Volcano in Chile atm









[click to enlarge pics]

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Re: Volcanic Eruption

Post by rwo power on Fri Apr 24, 2015 12:03 am

That's the Villarica, right? Beautiful!
(BTW, I'll edit your pics to add thumbnails)

By the way, here's a webcam showing the Villarica in Chile:
http://www.webcamgalore.com/EN/webcam/Chile/Villarrica/16771.html

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Re: Volcanic Eruption

Post by RealGunner on Fri Apr 24, 2015 12:13 am

Yep. Looks magnificent

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Re: Volcanic Eruption

Post by El Gunner on Fri Apr 24, 2015 12:15 am

@RealGunner wrote:Volcano in Chile atm









[click to enlarge pics]

looks like CGI Smile

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Re: Volcanic Eruption

Post by rwo power on Fri Apr 24, 2015 12:15 am

I just checked and saw it isn't the Villarica in Chile (which is active right now, too), but the Calbuco volcano, which is located in Southern Chile/Argentina.

I'll look whether I'll find a webcam for this, too Smile

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Re: Volcanic Eruption

Post by rwo power on Fri Apr 24, 2015 12:20 am

So, got some youtube videos ^^

Spoiler:

Spoiler:

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Re: Volcanic Eruption

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