Today (12-April-2019) an earthquake swarm took place east of Grímsey island. This earthquake swarm is in a place that has been having many earthquake swarms in recent weeks. Largest earthquake in this swarm had a magnitude of 2,7 and other earthquakes were smaller in magnitude. As of writing this article the earthquake swarm seems to have stopped, how long that is going to last is impossible to know.
The earthquake swarm east of Grímsey island. Copyright of this image belongs to Icelandic Met Office.
Current outlook for this area of Tjörnes Fracture Zone is that earthquake activity is going to continue as it has been doing since January when this whole thing started slowly. There is not possible to know when this earthquake sequence ends in Tjörnes Fracture Zone. The risk of a large earthquakes continues to be in this area at the writing of this article.
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Sorry for the late article. I’ve been busy in other project that involves taking a lot picture and putting them up on my Instagram that can be found here.
Two earthquake swarms have appeared that I am now keeping an eye out for. This is earthquake activity in Grímsvötn (Grímsfjöll) volcano and then in Þórðarhyrna volcano (Thordarhyrna). Last time Þórðarhyrna erupted was in the year 1902 and that was at the same time an eruption took place in Grímsvötn volcano. Over the last few months there has been increase in earthquake activity in Þórðarhyrna and Grímsvötn volcanoes. Its not completely symmetrical increase in earthquakes, but close to it as of writing of this article. Last time Þórðarhyrna erupted without an eruption in Grímsvötn volcano was in the year 1887 (15th August) to 1889 (?).
Earthquake activity in Grímsvötn and Þórðarhyrna volcanoes. Copyright of this image belongs to Icelandic Met Office.
It is going to be a serious problem if an eruption happens in Þórðarhyrna volcano because that volcano is completely covered with a glacier that is up to 200 meters thick or thicker. Other risk factor is that Grímsvötn volcano might erupt outside of the caldera resulting in glacier floods and other problems.
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I am sorry for the late posting of this earthquake activity.
During the night of 8-April-2019 at 04:44 UTC an earthquake with magnitude 3,3 took place east of Grímsey island. This earthquake is part of a swarm earthquake activity in this area that started few weeks ago and is mostly ongoing as of writing this article.
The earthquake activity east of Grímsey island. Copyright of this image belongs to Icelandic Met Office.
The earthquake swarm west of Kópasker village continues and there continue to happen several earthquakes each day in that area. There are no clear signs showing that this earthquake activity is about to stop.
Please remember to support my work. I am getting seriously broke this month. Donations help me keep this website up and running and writing on it. Thanks for the support. 🙂
The earthquake swarm that started on 23rd of March 2019 west of Kópasker village is ongoing and hasn’t stopped since that time. Number of earthquakes and magnitude of earthquakes have mostly dropped and in last few days there hasn’t been any earthquake that has reached magnitude 3,0 or larger. This might change without warning since this earthquake activity is ongoing.
The earthquake swarm west of Kópasker village. Copyright of this image belongs to Icelandic Met Office.
According to recent news articles this is the strongest and longest earthquake swarm on this fault since 1991 (28 years) according to data that scientist at Icelandic Met Office looked at in their records. This is as far back their data possibly go back for this part of Iceland. Over 3000 earthquakes have been recorded in this earthquake swarm since it started.
Please remember to support my work. I am getting rather broke this month and this is just the start of this month. Thanks for the support. 🙂
This is a sticky article.
It takes a lot of hours to maintain this website. Its a lot of work and I spend many hours checking current earthquake data and sometimes hours searching historical records about a volcano or an area in Iceland that is having an earthquake swarm if such data is available. The issue is also costs of hosting the website, since with increased traffic I have had to get larger dedicated hosting. Most months I don’t get enough donations to support that cost.
This endless problem with money because of low social welfare that I’m on and lack of donations means that I’ve not been able to replace my failed earthquake computer (new motherboard +memory +cpu) or my failed server computer (failed for unknown reasons). This has also delayed my seismometer upgrade from my current hardware to Raspberry Shake hardware. I did get donations for it but I didn’t get enough donations to get that project finished. I am going to finish it next 3 to 4 months if no delays happens since I am going to be working next summer. I do need a new earthquake computers for the Raspberry Shake set-up (two, one Windows and one Linux). I don’t have any idea how to do this at the moment due to lack of money. Having no money is also really stressful when it is a problem for a long period of time as has been the case for me for several years already.
Living in Denmark is slightly cheaper than living in Iceland. As is clear from 2017 data from Eurostat. I am also going to be living in a cheaper apartment compared to last time I was living in Denmark (I think its called a condo). I’ll also be debt free in Iceland and that means less financial pressure for me. The exchange rate is always going to be a issue with Icelandic Krona. That is why I hope that I can move paying for my dedicated hosting from ISK to DKK, in the long term it might be more stable and cheaper. Since the the DKK/USD exchange rate is stable compared to ISK/USD exchange rate.
I removed the banners because they are not getting used. According to a Last Week Tonight with John Oliver the click rate of banner advertisements is just 0.17%. It is possible to continue to support me by using Amazon, all the banners have now been moved to Support with Amazon page.
The best way to support my work is with donations by using PayPal or by using bank transfer if you are in the EU and don’t want to use PayPal. All the information can be found here. I don’t want to go subscription because this is information that needs to reach everyone regardless of economic status if something major happens in Iceland.
I want to thank everyone that has been supporting my work with donations. They have helped me to survive the months I’ve been broke.
I am going to update this article in the in the future.
This is a update on the earthquake swarm on Tjörnes Fracture Zone. Information in this article might get outdated quickly.
The earthquake swarm is ongoing as of writing of this article, it has now been going for a week. Since Wednesday there haven’t been any earthquakes over magnitude 3,0. Largest earthquake have reached magnitude 2,9 in last 48 hours. Total number of earthquakes in last 48 hours is around 567.
The earthquake swarm west of Kópasker village. Copyright of this image belongs to Icelandic Met Office.
This earthquake swarm has been slowly getting less intense and fewer earthquakes have been recorded since yesterday than the days before. It does not mean that this earthquake swarm is over. It might increase again if a large earthquake happens (magnitude 4,0+).
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Uncertainty level has been declared in the area close to Kópasker village due to this earthquake swarm. This is the lowest alert level in Iceland.
Since this earthquake swarm started on Saturday around 1800 earthquake have taken place according to Icelandic Met Office. Largest earthquakes in the last 24 hours have magnitude 3,8 and 3,0. This might change in next few hours since this earthquake swarm is ongoing.
The earthquake swarm (green stars) west of Kópasker. Copyright of this image belongs to Icelandic Met Office.
This earthquake swarm has increased the risk of a magnitude 6,0 or larger earthquake in the Tjörnes Fracture Zone. This earthquake swarm is large for this part of the Tjörnes Fracture Zone.
At 20:29 UTC an magnitude 4,2 earthquake took place in the earthquake swarm west of Kópasker village. This has increased the earthquake swarm in this area. The magnitude 4,2 was followed by a magnitude 3,3 earthquake few seconds later.
Earthquake swarm west of Kópasker (green stars). Copyright of this image belongs to Icelandic Met Office.
The earthquake swarm is currently ongoing and this information might change without warning.
Over the last few days there has been small earthquake swarm activity in Tjörnes Fracture Zone. The activity has been in two locations, west of Kópasker village and east of Grímsey island (ongoing swarm). Both earthquake swarms are small for now and only few earthquakes larger than magnitude 2,0 have happened. Total number of earthquakes is around 146 for the whole Tjörnes Fracture Zone when this article is written.
Current earthquake activity on the Tjörnes Fracture Zone. Copyright of this image belongs to Icelandic Met Office.
The earthquake swarm east of Grímsey island is not over as it has not yet peaked based on what I am seeing. It is more difficult to know about the earthquake swarm west of Kópasker village. As of writing of this article both earthquake swarms are ongoing.
Please remember to support my work. It helps me and prevents me from going broke and deal with hosting costs. Please note that if you donate with bank that I’ve once again updated the bank address because I am going to be moving back to Denmark next year. This is a change from my originals plans, but that is just life. I posted an explanation in a comment here. Thanks for the support. 🙂
This is a short update on the earthquake swarm east of Grímsey island in the Nafir volcano (no Global Volcanism Program profile). Yesterday (19-March-2019) a magnitude 3,2 earthquake happened. Other earthquakes both before and after it are smaller in magnitude. In total over 200 earthquakes appear to have taken place in this earthquake swarm.
Earthquake activity yesterday (19-March-2019) in Nafir volcano. Copyright of this image belongs to Icelandic Met Office.
Earthquake activity has currently stopped. Based on the pattern in the earthquake swarm last year this might not be over and this might be going on for weeks until a peak is reached in earthquake swarm activity. It is impossible to know for sure what happens next in this earthquake activity in this area.
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