Small glacier flood from Grímsfjall caldera lake

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On the 18th of August 2016 a small glacier flood started from the Grímsfjall volcano caldera lake. This is a tiny glacier flood according to the news, with the glacier on top of the lake only having dropped around 5 meters so far.
Minor glacier flood as it appears on Grímsfjall volcano SIL station. Copyright of this image belongs to Iceland Met Office.

This glacier flood is going into Gígjukvísl glacier river, at the moment Iceland Met Office doesn’t think there is any major danger from this glacier flood. The biggest risk at the moment is from volcano gases that have dissolved into the water and get released when the pressure drops of the water. The glacier water is already in Gígukvísl glacier river, no major changes are expected in that river due to how small this glacier flood is.

Iceland News

Lítið jökulhlaup hafið úr Grímsvötnum (Rú, Icelandic)
Jök­ul­hlaup hafið úr Grím­svötn­um (, Icelandic)

Posted in Glacier flood, Grímsvötn / Grímsfjall, Monitoring | Leave a comment

Earthquake activity in Katla volcano

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Today (19-August-2016) a magnitude 3,5 earthquake took place in Katla volcano. It was followed by several earthquakes, both before the strongest earthquakes and after it.

The earthquake activity in Katla volcano. The green star shows the location of the magnitude 3,5 earthquake. Copyright of this image belongs to Iceland Met Office.

This doesn’t seems to be an activity connected directly to magma movements. This might however be a gas under pressure breaking rock, since clues this summer suggests that heat is now increasing in the caldera. At least for now, it might cool down again in coming months. The most common months for Katla volcano to erupt are from July until November, eruptions in other months are less common, they do happen every few hundred years.

The magnitude 3,5 earthquake as it appeared on my geophone in Heklubyggð. This image is under Creative Commons licence. Please see the CC Licence page (above) for more details.

Posted in Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano | 5 Comments

Thanks for the patience and understanding

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I want to thank my readers for the patience and the understanding of the quiet period following the sudden passing of my step-father on 11th of July 2016. This past month has been difficult for me and my family and the recovery process is far from complete, but I’m doing my best to live with the new reality with my step-father.

Life is never going to be the same for me, this is however just how the world works and I’ll have to live with it.

Posted in Website | 6 Comments

Automatic article 12th of August

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This is an automatic article for 12th of August so people can continue to discussions if something is happening in Iceland.

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Automatic article 29th of July

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This is a automatic article so people can continue discussions if something is happening in Iceland.

Posted in Website | 36 Comments

Automatic article 14th of July

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This is an automatic article so people can comment if something happens in Iceland.

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Announcement: No new articles until at least 29th July

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Due to the sudden passing of my step father on 11th of July there are not going to be any new updates until at least 29th July, possibly not until 16th of August. I just don’t know yet. I am going to Iceland for the funeral and other things that follow this whole thing.

I’m going to set-up a automatic posts for people can continue comment if something happens (they won’t appear on Facebook or Twitter). If comment get stuck in moderation or go to spam. I’ll do my best to free those comment once I see them. Internet connection is not good at my mother place so I don’t know how that goes once I’m there and my laptop is in really bad shape.

Automatic articles are going to appear on this days. They are going to be marked as such.

14th July
29th July
12th August

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Small glacier flood from Mýrdalsjökull glacier

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A small glacier flood started from Mýrdalsjökull glacier few days ago. The most risk is from sulphur gases and other gases from the glacier flood that might be concentrated in lower areas. There is also a minor risk of the flood destroying walking path bridges in the area it goes over. This glacier flood might go into Emstruá river and there is the risk of destroying walking path bridges in the area. No other risk is expected from this minor glacier flood from Mýrdalsjökull glacier. This is a normal summer release of hydrothermal water from the glacier. Happens every other year and sometimes every year.

Posted in Glacier flood, Katla / Mýrdalsjökull, Monitoring | 6 Comments

Earthquakes between Bárðarbunga and Grímsfjall volcanoes

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Today (05-July-2016) at 05:56 UTC an magnitude 3,4 earthquake took place between Bárðarbunga and Grímsfjall volcanoes.

The green star is the magnitude 3,4 earthquake between Bárðarbunga and Grímsfjall volcano. Copyright of this image belongs to Iceland Met Office.

This earthquake suggests that an complication is on the way. The question here is if an interaction between Bárðarbunga volcano and Grímsfjall volcano is on the way. Since both volcanoes are preparing for an eruption. [Speculation!] All that I get from my models (in my mind, since I don’t have the computer power or the skills to make them PC friendly at the moment) is confusion. At worst a magma dyke from either Bárðarbunga volcano might enter Grímsfjall volcano or an dyke might come from Grímsfjall and enter Bárðarbunga volcano (hint: A result of either of such event is rather catastrophic eruption, even if just for a short time). What can also happen is nothing, just earthquakes and nothing more. However, increase in the earthquake activity at this location suggests that no such luck is on the way. When and if such event happens is impossible to know, what can be done is to keep monitoring, day and night. This is going to happen the when and the way it wants to happen, all that can be done as humans is to wait and see. [/Speculation!]


Please remember to support Iceland Geology so that I can keep writing this articles (so I can buy food to keep writing). Thanks for the support.

Posted in Bárðarbunga, Earthquakes, Grímsvötn / Grímsfjall, Monitoring, Volcano | 11 Comments

Earthquake swarm north of Kolbeinsey Island

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Today (05-July-2016) an earthquake swarm took place far north of Kolbeinsey Island. Earthquake activity in this area of the ocean has been increasing over the past few months. It’s unclear what is going on at the moment.

The earthquake activity north of Kolbeinsey Island. Copyright of this image belongs to Iceland Met Office.

Largest earthquakes in this swarm had the magnitude around 2,9 – 3,4. Good magnitude estimate is not possible due to the distance from the SIL network. What exactly is going on at this location is unclear. I do not rule out any eruption activity at this location when earthquake swarms take place. This might also just be normal earthquake swarm without any eruption connection. The depth of the ocean at this location is around 3 – 5 km.

Posted in Earthquakes, Kolbeinsey Island, Monitoring, Volcano | Comments Off on Earthquake swarm north of Kolbeinsey Island