Category: Reykjanes Ridge

During the night of 11-June-2015 an earthquake swarm took place on the Reykjanes ridge. This was a medium sized earthquake swarm, so far 151 earthquake have taken place.

The earthquake swarm on the Reykjanes ridge, green stars are earthquakes larger than magnitude 3,0. Copyright of this image belongs to Icelandic Meteorological Office.

The largest earthquake in this swarm had the magnitude of 3,9, second largest earthquake in this swarm had the magnitude of 3,6. Other earthquakes in this swarm where smaller in magnitude. This earthquake swarm appears to be over at the moment, it might resume without warning. Since often large earthquake swarms in this part of the Reykjanes ridge start slowly and last over few days to weeks.

Earthquake swarm appeared clearly on my only geophone in Iceland, in Heklubyggð in south Iceland. This image is released under Creative Commons Licence. Please see CC Licence page for more details.

Any earthquake larger than magnitude 2,5 should appear clearly on my geophone in Heklubyggð, Iceland. Smaller earthquakes won’t appear clearly or not at all.

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More information can be found here (total living), here (food) and more information can be found here (article). I don’t have any lower price grocery (like Bonus) stores where I am living in Iceland due to small population (around 1400 people live in the multiplicity of Húnaþing Vestra). Denmark is considerable cheaper when it comes to buy food then Iceland, since it is possible to buy cheap food and there are always offers in stores. That is not the case in Iceland.

During the night (on 21-March-2015) a minor earthquake swarm took place close to Eldeyjardrangar on Reykjanes ridge. Largest earthquake in this swarm had the magnitude of 3,2. Total number of earthquakes in this swarm was around 30.

Earthquake swarm close to Eldeyjardragnar. The green star shows the magnitude 3,2 earthquake. Copyright of this image belongs to Icelandic Met Office.

Earthquake swarms like this are common in this part of the Reykjanes ridge. It is difficult to know if more earthquake activity is going to take place soon.

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Article updated at 20:01 UTC.

During the night (3-March-2015) there was a minor earthquake swarm on the Reykjanes ridge. Largest earthquake had the magnitude of 3,1. Other earthquakes where smaller.

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

Most of this earthquake activity was deep, with most depth being at 16,0 km. This suggest that this earthquake swarm happened mostly due to magma movement at depth. There is nothing suggesting that eruption is imminent in this area. Depth of the ocean at this location is around 400 – 1000 meters, this means that any signs on the surface are going to be hard to detect or not detected at all.

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Article updated at 18:44 UTC.

Yesterday (29-January-2015) a minor earthquake swarm took place on the Reykjanes Ridge. Total number of earthquakes was something around twenty or close to it.

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

Largest earthquakes in this swarm had magnitude of 3,2 and the second largest earthquake had the magnitude of 3,0. More earthquakes like this can possibly happen in next few days to weeks. This area often has high amount of earthquake activity.

Today (16-December-2014) there was a minor earthquake swarm on the Reykjanes Ridge. Only one earthquake had the magnitude of 2,9. Other earthquakes where smaller in magnitude.

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

It appears that this earthquake swarm is over for now. It might start again in next few hours to days, such activity is not uncommon on this part of the Reykjanes ridge.

Notice on updates: I had planned on starting regular updates today. That won’t happen due to bad weather preventing me getting a computer table that I need. I don’t know how long the delay is going to be since there is heavy snow in Iceland at the moment.

Article updated at 15:27 UTC.

Yesterday (04-November-2014) an minor earthquake swarm took place on the Reykjanes ridge. Around four earthquakes where recorded.

The earthquake swarm on the Reykjanes ridge on 04-November-2014. Copyright of this image belongs to Icelandic Met Office.

This is the same location that had a minor earthquakes swarm on 27-October-2014 that I wrote about here. Largest earthquake had the magnitude of 3,3, other earthquakes had smaller magnitudes.