I don’t have a lot of information about what is going on. The area that has having earthquake swarm is located at Geirfugladrangi good 20 to 40 km off the coastline. This earthquake swarm is strong and might even get stronger. I don’t know yet if this earthquake swarm is due to tectonic forces or because magma has started pushing to upper levels in the crust. There are no clear signs of eruption happening at this location at the writing of this article. The volcano in this area is called Reykjanes.
Earthquake swarm on Reykjanes ridge in a volcano called Reykjanes. Copyright of this image belongs to Icelandic Met Office.
This activity appears to be moving quickly and there’s a lot going on and information in this article is going to get outdated quickly.
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Yesterday (13-November-2019) has been a little quieter in the earthquake swarm in Askja volcano. Largest earthquake in the last 24 hours had a magnitude of Mw3,1. Over the last 48 hours around 500 earthquakes have happened in Askja volcano. There was a peak in activity after the magntidue Mw3,1 earthquake but it slowed down soon after that. Depth of this earthquake swarm has changed slightly, deepest points are now at 7 to 8 km and that might be a problem since magma is possibly at 10 to 15 km depth in this location. If this is a magma that can erupt I don’t know, if there is magma at this location it might also be a magma that’s too cold to erupt.
The earthquake activity in Askja volcano. Copyright of this image belongs to Icelandic Met Office.
The earthquakes continue to be rift-zone earthquakes along fault lines and there is as of the writing of this article no signs of magma movement in Askja volcano as a result of this earthquake swarm. This earthquake swarm has been going on for a week from today (14-November-2019). It is a question if this earthquake swarm is over or if this is just a quiet time in this earthquake swarm activity. It is known in Askja volcano eruption history that eruption in Askja volcano and nearby fissure swarms start with long period of earthquake activity that continues to grow over time. This can be read in this studies of earlier eruptions, study 1961 eruption, study 1875 eruption. Current situation continues to keep monitoring what is going on.
Science article on earthquake activity in Askja (added link)
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This is a short update on the earthquake activity in Askja volcano.
Earthquake activity has now moved to a new phase in Askja volcano. This appears to be a rifting event taking place in Askja volcano. They do often result in a fissure eruption of lava and sometimes short lived volcano ash event. That might not happen and as of writing of this article no magma movement has been seen on nearby SIL stations. That might change without warning at any time.
Earthquake activity in Askja volcano as of 23:25 UTC on 12-November-2019. Copyright of this image belongs to Icelandic Met Office.
Density of the earthquake swarm has increased from earlier as is clear here. Copyright of this image belongs to Icelandic Met Office.
It is not possible to know what happens next in this earthquake activity in Askja volcano. The only thing that can be done is to wait and see what happens.
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The earthquake activity in Askja volcano continues with no clear signs that it is about to stop. Since midnight around 200 earthquakes have happened at the writing of this article. Icelandic Met Office is currently holding a meeting about this earthquake swarm in Askja volcano.
The earthquake swarm in Askja volcano as of 12-November-2019 at 11:55 UTC. Copyright of this image belongs to Icelandic Met Office.
There seems to be a pulse activity in this earthquake swarm. Activity drops for several hours before increasing again and then slows down again. That is possible clue that this earthquake swarm has its origins in magma activity that has not yet reached shallow levels of the crust. There is no deep earthquake activity in this swarm and that might not happen. What exactly is going on in Askja volcano remains unclear at the writing for this article.
There are now two possibles of what might happen next
- Earthquake activity continues until an eruption happens. This would be a lava eruption with no or limited amount of volcano ash happening in the process.
- This earthquake swarm continues until it just stops and no eruption happens.
What happens is impossible to know for sure since this earthquake activity is a mystery as of the writing of this article.
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Since I wrote the article yesterday (09-November-2019) on the earthquake swarm in Askja volcano there has been increase in the earthquake activity. One magnitude Mw3,4 earthquake has happened and one magnitude Mw3,2 earthquake also happened. The active earthquake area seems to have expanded a little to both north and south. This earthquake swarm continues to appear to be only tectonic in nature and there are no signs of magma movement in the shallow levels of the crust on nearby SIL stations. It is not possible to know for sure what is happening in deeper levels of the crust.
The earthquake activity in Askja volcano. Copyright of this image belongs to Icelandic Met Office.
There is a chance this earthquake swarm is going to increase before this activity slows down. What happens next depends on the built up stress levels in the crust in Askja volcano. In the last 48 hours over 300 earthquakes have taken place in Askja volcano.
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Since earlier this week (Week 45) there has been a ongoing earthquake swarm in Askja volcano. Largest earthquake in this swarm so far had a magnitude Mw2,8 while other earthquakes have been smaller in magnitude. This earthquake activity is happening on a fault that is North – South directions. The earthquake activity is happening just inside or just outside (this is unclear) in the main Askja volcano. This might be dyke injection into Askja volcano at this location but that remains unclear since there are no clear signs of what is happening. This might just be a tectonic activity in Askja volcano as often happens in rift zones.
Askja volcano earthquake swarm. Copyright of this image belongs to Icelandic Met Office.
What makes this earthquake swarm something to monitor is how long it has been going on. Its been going on at least five days and maybe even six days at the writing of this article. In most cases this type of earthquake swarm activity stops without anything more happening in Askja volcano. I suspect that is also going to be the case with this earthquake swarm.
Please remember to support my work. As the pinned article says I am really broke this month. Thanks for the support. 🙂
I have almost paid all the bills for November and I don’t have any money left for rest of the month and none bill ($15USD, my online backups).
The reason for current problems is fast debt payment with my bank in Iceland in November because of me moving to Denmark and because how October did go for me the problems I was having then stretched into November. I don’t know yet if they are going to reach into December that is something I won’t see until later.
I am so broke now that I can’t even buy a toothpaste and toothbrush in Denmark. I spent the last few euros (I made a trip to Germany that’s nearby) to buy some food with the last few euros that I had.
I hope that people can support my work and me through this problematic time. If anyone is wondering why this keeps happening the main reason is that the Icelandic government is not paying people on welfare a living wage. Welfare like I am on is now ca 90.000 ISK (ca 652€/$722 USD/4.868 DKK) below minimum wage in Iceland. That creates problems for anyone on welfare in Iceland.
Currently I only have 0,26€ left. This is outside few euro coins I have but I have exhausted that from today. This is the worst situation I’ve been in when it comes to money for a long time. I have one donation on the way to my Danish bank account with PayPal but there seems to have been some type of delay so I don’t have that money yet. I just hope it isn’t lost in transfer to my Danish bank account.
Thanks for the support. 🙂
Please note that I am now moving to Danish PayPal account and I hope to update the buttons soon. I just have to finish the verification process first with PayPal before I can do so.
Article updated on 11-November-2019 at 18:30 CET.
Article updated on 11-November-2019 at 18:35 CET.
On Saturday (26-October-2019) a earthquake with a magnitude of 3,5 took place in Bárðarbunga volcano. This was a single earthquake and no more earthquake activity happened following this activity.
On Sunday (27-October-2019) a earthquake swarm started in Bárðarbunga volcano. This is a deep earthquake swarm with a depth from 20,2 km and up to 10,9 km on Sunday. All of the earthquakes in this swarm had a magnitude lower than Mw2,0.
Today (Monday 28-October-2019) the deep earthquake swarm continued in Bárðarbunga volcano. This earthquake swarm was larger in number of earthquakes happening. Depth was from 26 km to 15,5 km. This deep earthquake activity is connected to magma injection from deep magma reservoir that is below Bárðarbunga or a different one nearby. There is no way to know for sure what magma reservoir is feeding this earthquake activity. Often this deep earthquake activity is followed by a more intense earthquake activity in Bárðarbunga volcano it self. What the connection between those two events is remains a mystery. It is impossible to know if this increased earthquake activity means anything for now. Last times this has happened it has not resulted in anything other than earthquake activity over time period of several weeks.
The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.
This earthquake activity is now a common feature of Bárðarbunga volcano. This does not mean that an eruption is going to happen soon or is imminent since magma on the move to start an eruption is going to result in a far larger earthquake swarm than have been happening now.
Today (21-October-2019) at 12:25 UTC the earthquake swarm at Tjörnes Fracture Zone (TFZ) seems to have stopped rather quickly. Why that is I don’t know since this is unusual end to a large earthquake swarm. Close to 500 earthquakes were recorded in this earthquake swarm.
The earthquake swarm as of this evening. Copyright of this image belongs to Icelandic Met Office.
Largest earthquakes in this earthquake swarm had a magnitudes of 3,5 / 3,2 and 3,1. Other earthquakes were smaller in magnitude. There are reports of the largest earthquakes being felt in Húsavík village according to the news in Iceland. The end of this earthquake swarm does not mean activity is over in this area. This earthquake activity was tectonic in nature and no signs of magma being the reason for this earthquake activity.
Today (19-October-2019) an earthquake swarm started in eastern Tjörnes Fracture Zone. This is close to the coastline so it might be felt if any large earthquake happens. This earthquake swarm appears to be gearing up to be a strong one with many earthquakes every few minutes.
The earthquake swarm in Tjörnes Fracture Zone. Copyright of this image belongs to Icelandic Met Office.
I have limited internet until 1st of November and I might not be able to update this article if something happens in this earthquake swarm or if a large earthquake happens.
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