Earthquake swarm on the Reykjanes ridge

On Saturday (13-July-2019) earthquake swarm started off the coast of Reykjanes peninsula on Reykjanes ridge. The earthquake swarm is located 2 – 4 km south-west of Geirfulgadrangur rock. It is unclear if this earthquake swarm is over. Largest earthquakes in this swarm had a magnitude 3,1. Other earthquakes had smaller magnitude.


Earthquake swarm on the Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

Activity in this area has the pattern of stopping and then starting again few hours to week later. This might result in stronger earthquake swarm next time this activity starts up again. There is a volcano in this area that last erupted in 18th or 19th of century. This volcano is not listed in Global Volcanism Program I think. I do not think this earthquake activity is volcano related but that is difficult to know fore sure due to how remote this area is and poorly known as such.

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Earthquake activity on the Reykjanes ridge

This morning at 10:57 UTC (21-May-2019) a magnitude 3,1 earthquake took place around 7 km west of Geirfugladrangi (a rock). This earthquake was part of a small earthquake swarm in this area. Several magnitude 1,1 to 1,7 earthquakes took place in this location. Since 13:44 UTC the area has been quiet, due to distance from the coastline and the SIL network it is possible that more earthquakes have happened than are being recorded.


Earthquake activity on Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

This is most likely rift zone earthquake activity rather than a volcano related earthquake activity. Earthquake activity is common in this area of the Reykjanes ridge.

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Strong earthquake swarm deep on Reykjanes ridge

Today (10-March-2019) strong earthquake swarm started deep on the Reykjanes ridge. The distance from Reykjavík is around 840 km. Largest earthquake in this swarm had a magnitude of Mw5,8 (EMSC information here). Only three earthquakes where detected and all of them where large than magnitude 5,0. There is a good chance this earthquake swarm is currently ongoing. It is not possible to know if an eruption is happening this far from the coastline. Depth at this location is 3 to 6 km. There is a good chance more earthquake are going to appear on this location in next few hours to days because of the large Mw5,8 earthquake.

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Two earthquake swarms on Reykjanes ridge

During the week there has been a small earthquake swarm on the Reykjanes ridge, mostly close to the coastline. The first earthquake swarm is closer to the coastline and largest earthquake so far had a magnitude of 3,0 at 14:31 UTC just 7,6 km off Eldey Island (its more of a rock standing up from the ocean). The second earthquake swarm had a magnitude 3,0 earthquake at 04:32 UTC and was 17,5 km away from Geirfugladrangi (also a rock that just stands up from the ocean). All other earthquakes have been smaller in magnitude.


Two earthquake swarms on the Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

Both earthquake swarms appear to be ongoing when this article is written.

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Earthquake swarm deep on the Reykjanes ridge

Yesterday (14-July-2018) and during the night (15-July-2018) an earthquake swarm took place deep on the Reykjanes ridge. This appears to be been a minor earthquake swarm and largest earthquake only had a magnitude of 3,0. This earthquake swarm took place good distance from the SIL network so locations and magnitudes have larger error margins.


Earthquake swarm on the Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

This earthquake swarm appears to be over. If any smaller earthquakes are happening in the area were the earthquake swarm took place they are not being detected by the SIL network due to distance. This earthquake swarm can start again without warning.

Short earthquake swarm on the Reykjanes ridge

Yesterday (28-June-2018) and today (29-June-2018) during the night a short but strong earthquake activity took place on the Reykjanes ridge. Strongest earthquake had a magnitude of 3,2 or 4,1. It is unclear (to me) at the moment what magnitude is correct. Since I did get a signal on Dellukot geophone station that was considerable larger than for magnitude 3,2 earthquake (given distance from the station). B√∂√įvarsh√≥lar geophone station remains down due to a broken computer (that I can’t fix).


Green stars show the location of this earthquake activity. Copyright of this image belongs to Icelandic Met Office.

It is unclear at the moment if this earthquake activity is going to continue. At the moment it appears to have stopped, but distance from land makes it impossible to detect smaller earthquakes in this area.

Minor earthquake swarm on the Reykjanes ridge

During the night of 26-May-2018 a minor earthquake swarm took place on the Reykjanes ridge. This earthquake swarm looks tectonic in nature. Only few earthquakes happened this time around and overall this earthquake swarm was small in number of earthquakes.


The earthquake swarm on Reykjanes ridge (yellow dots). Copyright of this image belongs to Icelandic Met Office.

The largest earthquakes in this swarm had a magnitude of 3,0. Other earthquakes had a magnitude of 2,0 – 2,8. Due to distance from the SIL network there is a good chance that more earthquake activity happened then was recorded by Icelandic Met Office. There is a good chance of more earthquake in this area on the Reykjanes ridge in next few hours to days. That has been a pattern for earthquake activity on the Reykjanes ridge in recent years. It might not happen but it remains a possibility.

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Strong earthquake swarm deep on the Reykjanes ridge

Yesterday (11-January-2018) at 09:46 and 09:50 UTC two strong earthquakes took place around 780 km deep south west of Iceland. The earlier earthquake had a magnitude of Mw5,4 (EMSC information here) and the second earthquake had a magnitude of mb4,9 (EMSC information here).


Earthquake activity deep south of Iceland (green stars). Copyright of this image belongs to Icelandic Met Office.

Icelandic Met Office reports in total 7 earthquakes, including the two largest ones that EMSC did record but with lower magnitude. The EMSC magnitude is the correct one. This earthquake swarm starts at 08:37 UTC with a magnitude 4,0 earthquake. It ends at 11:11 UTC with a magnitude 3,6 earthquake. The exact location of this swarm is difficult to know due to the distance it is from any earthquake monitoring network. It is also difficult to know for sure what is going on at this location but the earthquake data suggests that this was just a normal earthquake swarm and not connected to any volcano activity. At this distance smaller earthquakes are not detected (below magnitude of Mw3,6).

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Magnitude 5,9 earthquake deep on the on the Reykjanes ridge on 10-September-2017

Yesterday (10-September-2017) at 21:40 UTC a magnitude (Mw) 5,9 earthquake (EMSC information here) took place deep south on the Reykjanes ridge. No aftershocks have appeared on USGS or EMSC that I am aware of. They must have happened but due to distance from land this earthquake activity was not detected.


The magnitude 5.9 earthquake deep on the Reykjanes ridge as it appeared on my geophone in B√∂√įvarsh√≥lar. This image is under Creative Commons licence. Please see CC licence page for more details.


The magnitude 5.9 earthquake deep on the Reykjanes ridge as it appeared on my geophone in Heklubygg√į. This image is under Creative Commons licence. Please see CC licence page for more details.

The distance this earthquake took place from Reykjavík is 1004 km. Only thing it did was to scare some fish at most. It is impossible to know if anything more happens at this location. It might or it might not.

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Article updated on 12-September-2017 at 00:56 UTC. Added a link that I had forgotten.

Minor earthquake swarm on Reykjanes ridge close to Geirfuglasker island

Yesterday (22-August-2017) a minor earthquake swarm took place not far from Geirfulgasker island on the Reykjanes ridge (no GVP profile). This was a minor earthquake swarm as it was detected by Icelandic Met Office SIL network. There is a chance that more earthquakes happened then where detected. Largest earthquakes in this swarm had the magnitude of 2,4 and other earthquakes that happened where smaller in magnitude.


The earthquake swarm on the Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.

This earthquake swarm looks like it was mostly due to tectonic movements in this area. It is difficult to know for sure if a magma was at work here due to unclear earthquake signal. It can’t be ruled out. I don’t know when this area last erupted. I think it was sometimes in the time period between 13th and 15th century.

Update 1 on 24-August-2017

According to R√ļv News the Geirfluglasker Island collapsed in 1972 but for some reason was still being used by Icelandic Met Office as a point in their system. It has now been updated to Eldeyjarbo√įa area slightly more to the south. I will write about this are in accordance with this new information in the future.

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Amazon US/Canada changes

Due to changes in Iceland bank system it is possible that I won’t be able to use Amazon US and Amazon Canada for a while. The change is that my Icelandic bank is going to stop processing checks from 1-January-2018 (along with stop issuing them). I can keep using Amazon US and Amazon Canada advertisements until October (paid by November). I have contacted Amazon US and Canada about this and the word is that Amazon US is working on this. It doesn’t seems to be the case with Amazon Canada but I don’t get much income on it anyway.

What this means at once this change takes place I will go back to getting paid only when people buy something from Amazon UK/DE/ES since with those accounts I use direct bank deposit. This means a drop in income for me since the Amazon CPM advertisement pay considerable more than the advertisement that only pay once people buy something with the Amazon UK/DE/ES banners. I just have to hope that Amazon Europe adds CPM advertisements to Amazon UK/DE/ES so I can switch to it completely. I will start switching advertisement to Amazon UK/DE/ES by November if Amazon US has not resolved the issue by then. It is going to take me few days in November to move everything advertisement from CPM to regular advertisements that only pay when something is bought trough the banners.

Update to Amazon US/Canada payment problem (after 31-December-2017)

Amazon US is looking for a solution to this problem for international associates. Since this issue is not just hitting me. Europe has in general been making checks outdated, this applies not just in Iceland and Denmark. EU even makes a special note on this on their payment information website. What I am going to do is simple. I’ll just keep collecting payments on my Amazon US and Amazon Canada accounts until a new payment system is put in place by Amazon US/Canada. I don’t know how long this is going to take, but it might take a long while until Amazon US/Canada has a new payment system in place.

Article updated at 24-August-2017 at 18:35 UTC.
Article updated at 26-August-2017 at 14:15 UTC.