GPS Monitoring – Page 17 – Iceland geology

August 30, 2014August 30, 2014

Update on Askja and Bárðarbunga volcanoes at 17:49 UTC

This information is going to get outdated quickly.

This is the weekend edition of my regular updates on activity in Bárðarbunga and Askja volcano. They are shorter and might not contain all the information on what is going on.

Current status on Askja volcano

Askja continues to be on Yellow alert.
Dyke does not seems to have any progress moving into Askja volcano system. Reason why that is are unknown.
Earthquake activity appears to have dropped in Askja for the past 24 hour period.

Current status on Bárðarbunga volcano

Largest earthquake for the past 24 hours is a magnitude 5,4 earthquake that took place at 07:03 UTC. It took place in south-west part of Bárðarbunga volcano. It did appear clearly on my geophones and they can be viewed here.
Eruption has been confirmed to have taken place on 23-August-2014. That eruption did not manage to break the trough the glacier since it is 400 to 600 meters thick were the eruption took place.
Most earthquake activity is taking place on 15 km long line in the Dyke, starting at the location were the eruption took place and goes some 15 km south from that location. Dyke does not seems to be moving north at the moment.
Eruption is now considered more likely in Bárðarbunga volcano it self than before.
Last large eruption that took place in Bárðarbunga volcano was in 1717. According to Global Volcanism Program that eruption was an VEI 3 eruption.
Eruption can happen in slopes of Bárðarbunga volcano, also in its caldera. The glacier in the caldera is up to 800 meters thick (+- 100 meters).
Earthquake activity is stable, with over 1000 to 2000 earthquakes recorded daily so far.

GPS data

Icelandic Met Office has released GPS data and it can be viewed here.

Storm warning

There is going to be a storm in Iceland on Sunday. This means fewer earthquakes are going to be detected due the wind noise.

News bits in English

Eruption at Bardarbunga now more likely (Rúv.is)
Fresh ice cracks in Bárðarbunga? (mbl.is)

Updates during the weekend

I am going to post updates during the weekends. I do however need to take a little break since I’ve been working and writing about Bárðarbunga for the past two weeks. So updates on weekends are going to be shorter and less detailed than on working days (Monday – Fridays). If eruption happens I am going to post information about that eruption soon as I become aware of it and details soon as possible.

Article updated at 17:52 UTC.
Article updated at 18:10 UTC.
Article updated at 19:01 UTC. I corrected information about the dyke earthquake location.

August 29, 2014August 29, 2014

Update on Askja and Bárðarbunga volcanoes at 22:21 UTC

This is a short update on Askja and Bárðarbunga volcanoes. This information is going to get outdated quickly. I am not going to use pictures from now on (in most cases), since the situation now is complex and is going to go more complex as this goes on.

If you are first time commenter I need to approve your comment once. I have the comment section set-up this way in order to prevent spam getting into the comment section. I have enabled registration and registered users don’t need to deal with the word challenge. I had to close it a while ago due to spam bot problem that were registering on my website. I also need to approve all comments that have more than three links in them.

Askja volcano

The dyke from Bárðarbunga volcano continues its journey into Askja. It has not yet reached Askja magma chamber. When that is going to happen is unclear at the moment.
Activity has been picking up in Askja due to stress changed from the dyke.

Bárðarbunga volcano

Dyke activity continues at similar rate as before. It is now moving about 1 – 2 km a day according to latest news. The dyke has reached Askja volcano main system, it has not reached Askja main magma chamber. Once that is breached earthquake activity along with harmonic tremor in Askja is going to trough the roof.
Eruption on 23-August-2014 has been confirmed. It only lasted for 1 – 2 hours before it died down. I think current ideas why it happened are wrong. From my perspective it happened due to magma pressure inside Bárðarbunga magma chamber reaching a high point (highest so far). This did mean that the dyke was not able to tap off the magma chamber at fast enough rate for a short while. Allowing magma to breach the crust at other locations. While this was a short event, this suggests that magma is coming into Bárðarbunga magma chamber at depth. So far the volume that is flowing in is low for the moment. I suspect that might change at any time and without any warning.
The reason why the ice cauldron did not appear sooner is that it took the water some time to dig its own path trough the glacier. Why it did go to Grímsvötn lake (Grímsfjall volcano) I do not knwo.
Earthquake activity remains high in the north end of the dyke. Earthquake activity is present in Bárðarbunga volcano (main volcano), but it is not constant at the moment. That might change without warning.
No dyke activity so far going south of Bárðarbunga volcano.
Cracks appearing in the crust suggest that the dyke depth is only about 2 km at most. This has also allowed for groundwater warning up in areas. This has been seen under areas were the glacier is thin. This is creating hot springs and hydrothermal areas along the dyke path.
Inflation so far is around 40 cm to the east and west. There is nothing to suggest it is going to slow down at the moment.
This might be a long eruption once it starts. How long I do not know. At most some years, as has happened in Bárðarbunga volcano in the past.
Today there has been minor “quiet” time in Bárðrabunga. Harmonic tremor has been stable and no cycle of up and down has taken place. In my view that might change in next hours. I am already seeing changes in the tremor plot that suggest this.

The situation is highly dynamic and is going to change rapidly at times. So this information is going to get outdated quickly for that reason. For wind, weather and earthquake information in Iceland please check Iceland Met Office website. My geophone website can be viewed here.

Article updated at 23:33 UTC.

August 28, 2014August 28, 2014

Update on Bárðarbunga and Askja volcanoes at 13:34 UTC

This is a none picture update on Askja and Bárðarbunga volcanoes. The reason for this none picture update is that I haven’t had time to work on the images yet. This is the first time this has happened in Iceland since modern recording started. What is going to come out of this I do not know yet.

If you are in the area. Please don’t go into the closed area. There are fines for during so and it is also extremely dangerous since we don’t know properly what happens and risk of sudden flood is high and growing. Eruption might start at any time without warning, both outside the glacier and inside the glacier. If an eruption takes place in a glacier covered area, that means sudden glacier flood that are going to kill you if you are in flood path. In such glacier flood it is not just mud, volcano material, but also an ice bergs that are larger than 5 floor houses. If you get lost in such flood, the chance of being rescued from such flood are none. If you want to watch what is now unfolding do so at the save distance, this show is going to big according to my earliest estimate and guess work (not going to publish that here).

Askja volcano

The dyke from Bárðarbunga volcano has entered Askja volcano. Not the fissure swarm, the volcano it self.
Askja volcano status has been elevated to Yellow.

Bárðarbunga volcano

Cauldrons in Vatnajökull glacier that is on top of Bárðarbunga volcano have not grown during the night.
The water seems to be flowing into Grímsvötn (Grímsfjall volcano) lake. It has risen close to 15 meters in the past few days.
Earthquake activity is high. Both in the main volcano were a magnitude 5,4 earthquake (EMSC magnitude, USGS magnitude) took place today (28-August-2014) at 08:13 UTC. The earthquake took place in the caldera rim as most of the large earthquakes have happened.
Over 1300 earthquakes happened yesterday in the north end of the dyke swarm.
Cracks have started to happen in the crust above the dyke. This means the dyke is getting wider and is higher up in the crust then suggested by earthquake activity. There are reports of small cauldrons in Dyngjujökull glacier in the area, in the place were the glacier is thinnest and ending.
Harmonic tremor remains high on all SIL stations around Bárðarbunga volcano.

The situation is extremely dynamic and is going to change fast in next 24 to 48 hours. I am now close to 80% sure that an eruption is going to take place in both Askja volcano and Bárðarbunga volcano, since minor eruptions have been taking place under the glacier already.

August 28, 2014August 28, 2014

Unclear what is happening in Bárðarbunga volcano

This information is going to get outdated extremely fast.

Earthquake activity remains high.
Cauldron have formed in Vatnajökull glacier just SE and SSE of Bárðarbunga volcano.
The cauldrons are 4 to 6 km long and about 1 km wide.
No harmonic tremor have been seen, but that might have its own reasons.

Earthquake activity in Bárðarbunga volcano for past 48 hours. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity remains dense in Bárðarbunga volcano for the past 48 hours. Copyright of this image belongs to Icelandic Met Office.

Harmonic tremor remains high on Dyngjuháls SIL station. Copyright of this image belongs to Icelandic Met Office.

Harmonic tremor is also high on Kreppuhraun SIL station. Copyright of this image belongs to Icelandic Met Office.

The cauldrons that have been spotted today in Vatnajökull just SE and SSE of Bárðarbunga volcano are in the south end are of the current dyke. What is also important, they are also in an area were magnitude 5,0 earthquake did happen few days ago, in a area that has not had any dyke activity since 16-August-2014 when this all started. It is still unclear what happened to all the water in this melt, the glacier in this area is 400 to 600 meters thick and this is not a little melt that has taken place in the glacier. There is a chance the water did go to Grímsvötns lake (caldera like in Grímsfjall volcano), but that remains unclear at the moment.

I am going to post more information about this once I have them.

Updated at 00:14 UTC on 28-August-2014.

August 27, 2014August 27, 2014

Bárðarbunga volcano update at 00:31 UTC

This information is going to get outdated quickly.

This is the short update on status on the activity in Bárðarbungu volcano.

Current activity is mostly unchanged. Earthquake activity remains high and there are around 1000 earthquakes every 24 hours.
According to the news today and Icelandic Met Office data, the dyke doesn’t appear to be getting longer. It is now around 37 km long.
Largest earthquake since 2008 took place in Bárðarbunga volcano on 26-August-2014 at 01:26 UTC. It had the magnitude of 5,7 and took place in Bárðarbunga caldera. Second medium earthquake took place today at 11:56 UTC and had the magnitude 4,6. It was felt in Akureyri.
There are no signs of magma going to the surface as of writing of this article. I do expect that change quickly.
It is now my view that after the magnitude 5,7 earthquake the risk of an eruption Bárðarbungu caldera has increased from what it was. I don’t know yet if an such eruption is going to take place. I however find it to be the most likely outcome based on current status.

The magnitude 5,7 earthquake that took place on 26-August-2014 is the strong earthquake in Iceland since 2008, when a magnitude 6,3 earthquake happened between Selfoss town and Hveragerði in the South Seismic Zone in Iceland (often just called SISZ). Earthquake activity remains high in the north end of the dyke, with strongest earthquake today having the magnitude 4,6. With many more magnitude 3,0 and stronger earthquakes taking place. There are still over 1000 earthquakes being recorded every 24 hours in area where the dyke is located (about 20 km east of Trölladyngja).

Earthquake activity in Bárðarbunga volcano today. This map is already outdated. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity remains extremely dense in the dyke from Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

Total lack of earthquake at the start of the dyke suggest that the flow of magma is now smooth and it is flowing without any resistance to the north end of dyke. Where the dyke seems to have hit a resistance in the crust that he is not able to break at current time. I don’t know if the earthquakes that have been taking place today are going to change that. But if this resistance in the crust holds there is a chance it there are going to be even large earthquakes that are going to take place at this location. What magnitude is to expect is difficult to know for sure, but the crust in this area is able to make earthquakes above magnitude 5,5, but how far up the scale it goes I do not know.

There has been some deep earthquake activity taking place according to the automatic data, but since it is automatic data it might be wrong. The deepest earthquake that I did see to day took place today had a automatic depth of 29,3 km with quality of 90,10. There is a chance this dyke might get into connection of other deep dyke in this area. This are dykes that form deep in the crust at depth of more then 30 km, they don’t make any earthquakes when they form since the crust material in this region of the crust is soft and is unable to break and does not make an earthquake as result. I do not know what happens if this dyke manages to connect to an dyke that might have formed in the deeper range of the earth crust in this area. It is also a highly unlikely outcome, for the moment however it is not impossible. Since the dyke now has problems pushing north, and as an result of that it seems to be pushing a little bit down as result. It is clear that once it can not extent any future down or to the sides, it is going to go up. I am not expecting the flow of magma into the dyke to drop any time soon. That might happen, it is just unlikely to happen given the current data. Estimated amount of magma is around 350 million m³ today (26-August-2014).

Harmonic tremor remained high in Bárðarbunga volcano due to magma flow in the dyke. This is Dyngjuháls SIL station. Copyright of this image belongs to Icelandic Met Office.

Here is the harmonic tremor in Bárðarbunga on the SIL station in Kreppuhraun. Copyright of this image belongs to Icelandic Met Office.

The harmonic tremor shows that the dyke inflow continues as I did write about above. It also shows one important thing, the flow of magma into the dyke and presumably into Bárðarbunga volcano is not even. It happens in short periods of high inflow with lower periods between them.

GPS data show the magma continues to flow into the dyke at 5 to 10 km depth. More GPS plots can be found here. Copyright of this image belongs to University of Iceland.

The magnitude 5,7 earthquake as it appeared on my geophone in Heklubyggð. This image is released under Creative Commons licence. See CC Licence page for more details.

The magnitude 5,7 earthquake as it appeared on my geophone in Böðvarshólar. This image is released under Creative Commons licence. See CC Licence page for more details.

What this has told me is that there is far more magma in Bárðarbunga volcano then appear at first sight. How much of it can actually erupt in an eruption I do not know. But this seems to be far more complicated then I first thought, it is not just a dyke pushing out of Bárðarbunga volcano. There is also a lot more magma inside the magma chamber that is starting to look for an way out, at least from the looks of current activity. The glacier inside the caldera is 700 meters thick so the magma inside the magma chamber that is directly below the caldera is under this extra pressure from the glacier. Once that magma overcomes the pressure of the glacier an eruption is going to start in the caldera, until that time we might see more dyke activity going north and south of Bárðarbunga volcano. Since the magma is going to go first the easiest way out. How much pressure has to be inside the magma chamber to overcome the pressure of the 700 meter thick glacier inside the caldera I do not know. All I know is that it is a high number on any pressure scale.

As of this writing a new magnitude 5,1 (more on EMSC website here) has taken place in Bárðarbunga volcano caldera. Larger earthquake appear clearly on my geophones that can be viewed here.

August 25, 2014August 27, 2014

Bárðarbunga volcano update at 20:49 UTC

This information is going to get outdated quickly. Minor spelling note. ~~It appears that dike is spelled with a simple “i” not a “y”.~~ Information on what volcano dyke is can be found here on USGS website. Added: That is in U.S English, UK English uses Dyke so I am going to use UK English. Thanks to Squonk to pointing me to this information.

Special note on Askja volcano

There are many people speculating that the dyke might reach into Askja volcano. I find that to be unlikely outcome. That does not appear to have happen in the past and I don’t think the geology setting allows for it. The area is full of old dykes that have cooled into granite type of rock (and other hard types of rock) in the crust (this is a volcano area and I find this to be likely). Given the density and how hard granite is I find it unlikely that this magma is going to break it. It has been crossing softer rock in the crust for the past week. What I can’t rule out is that Bárðarbunga volcano might start an eruption in Askja volcano by some other mechanism that might or might not be well understood. Askja volcano did start to prepare for eruption cycle in the year 2010 (earthquake swarm at 20 km depth was the clue), but the process appears to be slow, at least the volcano doesn’t appear to be ready for an eruption as things look now.

Special note on Tungnafellsjökull volcano

Yesterday (24-August-2014) an magnitude 3,0 earthquake took place in Tungafellsjökull volcano, a small volcano west of Bárðarbunga volcano. There had been few other earthquakes also yesterday, just smaller. Currently there is nothing suggesting that Tungafellsjökull volcano is about to erupt. There has been earthquake activity taking place in Tungafellsjökull volcano during the past year, suggesting that the volcano is experiencing flow of new magma at depth (more then 15 km depth), but there isn’t anything to suggest that an eruption is imminent in it. There is also a good chance that current earthquake activity in Tungafellsjökull volcano is due to stress changes in the crust that are taking place due to the caldera of Bárðarbunga volcano is getting lower (more on that later in this article). I don’t think Bárðarbunga volcano is able to start an eruption in Tungnafellsjökull volcano, but this is also an volcano that has never erupted during historical times and current data suggest it might not have erupted at all during the last 10.000 years (or more). Tungafellsjökull volcano is located west of Bárðarbunga volcano, it has a green star on it currently (as of this writing) on Icelandic Met Office earthquake maps.

Bárðarbunga volcano update

Earthquake activity remains strong in Bárðarbunga volcano. Medium sized (magnitude 5,0 – 5,9) earthquakes (more information here)) have been taking place as the caldera gives away due to outflow of magma from the magma chamber in Bárðarbunga volcano. This appears to be happening due to less inflow of magma from depth (the mantle). The crust in this part of Iceland is up to 46 km thick due the mantle plume beneath it (more information in details here, warning a large pdf file). The lowering of the caldera is creating stress changes in the area. What the end result of that is going to be I don’t know, since the crust is slower to respond, but as more stress is build up in the area this way stronger earthquakes can be expected at later time.

Currently the dyke is now at location that last erupted in the year 1797, it has remained bit unclear if it was Bárðarbunga or Askja that started that eruption. Chemical analyse says the lava is from Bárðarbunga volcano, not Askja volcano. This is according to the news I did hear today. Currently the dike north end is now 20 km east of Trölladyngja. Earthquake activity has been picking up and increasing in that area for the past 24 hours. It however doesn’t appear to be as high as it is on the main area of the dyke (about 20 km ENE of Kistufell, north of Dyngjujökull glacier, just check the earthquake map if you are confused by this).

The earthquake activity for the past 48 hours in Bárðarbunga volcano. Green stars show earthquakes with higher magnitudes then 3,0. Copyright of this image belongs to Icelandic Met Office.

The earthquake activity during the past 48 hours in Bárðarbunga volcano has been dense. Copyright of this image belongs to Icelandic Met Office.

Harmonic tremor remains high on Dyngjuháls SIL station. It goes up and down in accordance with the magma inflow into the dike. Copyright of this image belongs to Icelandic Met Office.

Harmonic tremor is also high on Askja SIL station. Same movement can be seen as on Dyngjuháls SIL station. Copyright of this image belongs to Icelandic Met Office.

GPS data shows that more magma has flowed into the dyke during the past 24 hour. More GPS stations can be found here. Copyright of this image belongs to University of Iceland.

In the news today in Iceland I have seen that there is now some discussion that this dyke might not erupt at all. Since it appears both to be getting deeper in some areas and there are currently no signs of it going upwards. The problem with this is the idea is in my view based on wrong parameters so I don’t agree with it. This dyke is going to erupt in my view, it is just a matter of time now. It might not erupt, that is always a possibility. I just think it is highly unlikely to be the outcome of all of this. This dyke is going to continue making a path for it self until it hits a resistance in the crust it cannot break after that it is going to go up, since its easier path for it, rather then to go down into the crust where its path has more resistance. When that might happen is something that I do not know.

Article updated at 21:03 UTC.
Article updated at 21:26 UTC.
Article updated at 00:13 UTC on 26-August-2014.
Article updated at 10:35 UTC on 26-August-2014.

August 21, 2014

Bárðarbunga caldera possibly lowering

This is a short no-picture update on the status in Bárðarbunga volcano. This information is going to get outdated quickly.

There are now clues that Bárðarbunga volcano caldera is getting lower. While there are no signs of imminent collapse such event might happen since this process has started. This explains the earthquake the activity in the caldera, that has been taking place for the past 48 hours. What this means in terms of an eruption I do not know, what I do know is that this type of event if it happens are never small and the following eruption might be huge. This is also going to change the landscape in Vatnajökull glacier forever (that is common thing in Iceland during an eruption cycles).

There has also formed a 25 km long dyke trench in the crust that goes north-east at the moment. There are clues that it might be getting wider at this moment. It appears to have stopped going north-east for the time being.

More details on this later when I know more (and my health is slightly better).

August 18, 2014August 18, 2014

Orange alert level declared for Bárðarbunga volcano

This is short update on Bárðarbunga volcano. Due to ever changing nature of this events this information is going to get outdated quickly.

Icelandic Met Office has moved the warning level for air traffic up to Orange level (see here). GPS measurement have confirmed magma movements inside Bárðarbunga volcano and this movement is fast.

GPS data from University of Iceland. This data shows how fast the change has been in the past few days. More GPS data can be found here. Copyright of this image belongs to University of Iceland.

Earthquake activity has remained about the same, with regular fluctuation in activity. Overall however the activity has remained constant.

The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

The earthquake activity in Bárðarbunga volcano has been migrating to the north-east over the past 10 to 18 hours. The activity close to Dyngjuháls appears to be stable at that location for the moment. Earthquake activity in other parts of Bárðarbunga have quieted down for the moment, that might change without warning.

Earthquake activity has remained stable in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

Harmonic tremor levels have remained stable since this started. They do drop a little in sync with the drop in earthquake activity.

The harmonic tremor at Dyngjuháls SIL station. Copyright of this image belongs to Icelandic Met Office.

Kreppuhaun SIL station shows the harmonic tremor also. Along with interesting jump in the past hour of harmonic tremor activity. I am not sure why that is. Copyright of this image belongs to Icelandic Met Office.

Vonaskarð SIL stations shows pattern that is close to what appears on Kreppuhraun SIL station. Copyright of this image belongs to Icelandic Met Office.

I am not sure why the harmonic tremor levels are what they are at the moment. Since no eruption has started. This might be due to changes in hydro-thermal areas under the glacier, or there might be some other reason for this that is not known to me.

Drum plot that Icelandic Met Office has on-line are showing interesting activity. Around 11:00 UTC there is a string of earthquakes, following this activity a increase in harmonic tremor takes place. Copyright of this image belongs to Icelandic Met Office.

This can also be seen on Dyngjuháls SIL station. Copyright of this image belongs to Icelandic Met Office.

This also appears clearly on Kreppuhraun SIL station. Copyright of this image belongs to Icelandic Met Office.

As for amount of earthquake detected today, so far the amount recorded today is around the same as yesterday, might even be slightly higher.

Updated at 16:43 UTC.

March 26, 2013March 26, 2013

Uncertainty level declared on Hekla volcano

Uncertainty level has been declared on Hekla volcano due to strange earthquake activity in it for the past week or so. But in total of seven earthquakes where recorded in Hekla volcano at the depth of 11 to 12 km. This is highly unusual for Hekla volcano. People are advised against going up to Hekla volcano while uncertainty level is in force. It is also dangerous to be too close to Hekla volcano. Since if an eruption starts, it is going to start without any warning at all.

I am going to post updates on Hekla volcano as needed if anything happens. It is possible to watch activity live from Hekla volcano on my geophone page here. But I have a geophone located about 16 km away from Hekla volcano. List of web cameras that I know of are online and focused on Hekla volcano can be found here. Update 1: Web camera that is showing Hekla volcano (pictures) can also be found here.

News about this in English

Seismic activity in Mount Hekla (Rúv.is)

News about this in Icelandic

Ekki mikið um jarðskjálfta við Heklu (Rúv.is)
Óvenjuleg jarðskjálftahrina í Heklu (Rúv.is)
Engin bráðahætta á eldgosi (Rúv.is)
Jarðhræringar í Heklu: Óvissustig í gildi (Rúv.is)

Óvissustig vegna Heklu (mbl.is)
Engin sjáanleg merki um eldgos í aðsigi (mbl.is)
Hægt að fylgjast með Heklu (mbl.is)

Óvissustig vegna hugsanlegs goss í Heklu (Vísir.is)
Ferðamenn varaðir við að vera nærri Heklu (Vísir.is)
Fyrirvarinn yrði einn til tveir tímar (Vísir.is)

Óvissustig vegna óvenjulegra hræringa í Heklu (DV.is)
„Hekla gaus með litlum fyrirvara síðast“ (DV.is)
Eftirlitsstig vegna Heklu hækkað úr grænu í gult (DV.is)

Blog post updated at 17:26 UTC on 26.03.2013.

March 17, 2013

Weather has been problem for monitoring instruments on Mýrdalsjökull glacier this winter

Bad weather has been a major problems for monitoring Katla volcano (and others also) this winter in Iceland. Not only has the bad weather damaged communications setup for the instruments in question. But also has a lot of snowfall prevented solar chargers and windmills that generate power for this instruments made them fail. In many cases the instruments them self are also under several meters of snow in few cases.

This means that for long periods during this winter there have been no data recorded on several SIL stations on Mýrdalsjökull glacier. But last week technicians from Icelandic Meteorological Office and University of Iceland did go up to Mýrdalsjökull glacier to try and fix the broken instruments and hardware in question. They had some success. But have to return later to repair the hardware they where not able to repair this time around.

Icelandic news about this repair mission can be found here. This news is in Icelandic.

Mýrdalsjökull leikur mælitæki grátt (Rúv.is, Icelandic)
Fréttir: Jökullinn leikur mælitæki grátt (Icelandic, Video)

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