Category: Bárðarbunga

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Strong earthquake in Bárðarbunga volcano

Today (27-September-2020) at 00:06 UTC an earthquake with magnitude of Mw4,8 took place in Bárðarbunga volcano. This earthquake is the strongest earthquake in Bárðarbunga volcano since April 2020 according to Icelandic Met Office.


Earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office. Used with permission.

This earthquake activity suggests that magma might be pushing up at this location but no data for now confirms this. This might just be the caldera pushing up after it dropped 60 meters in 2014 to 2015 eruption of Bárðarbunga volcano. There are no signs of possible eruption and after this earthquake took place there has only been minor earthquake activity in Bárðarbunga volcano and nearby areas.

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Earthquake activity in Hamarinn volcano (Loki-Fögrufjöll)

During the night (15-September-2020) an earthquake with magnitude of Mw3,1 took place in Hamarinn volcano (Loki-Fögrufjöll) (part of Bárðarbunga volcano). This earthquake is part of an activity that has been happening in this location for more than a week. It’s unclear what this activity means but it has been recorded that in 2011 few weeks before a minor eruption in volcano there was an increase in earthquake activity before the eruption took place. This earthquake activity is ongoing at the writing of this article.


The earthquake activity in Hamarinn volcano. Green star shows the main active area. Image used with permission and copyright belongs to Icelandic Met Office.

When this earthquake took place there was no change in harmonic tremor on nearby SIL stations. An eruption in Hamarinn volcano don’t seem to require a lot of earthquake activity before it starts. I don’t know why that is but that was the experience in the minor eruption in July 2011.

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Two strong earthquakes in Bárðarbunga volcano yesterday (14-July-2020)

This article is a bit late because I didn’t have the energy to write it yesterday (14-July-2020).

Two earthquakes with magnitude 3,0 (at 23:41 UTC on 13-Jyly-2020) and a magnitude Mw3,6 (at 00:56 UTC on 14-July-2020). This earthquakes are because Bárðarbunga volcano continue to inflate as it has been doing since the end of the eruption in Holuhraun in February 2015.


The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

There were two aftershocks with magnitude of Mw2,5. Other earthquakes that happened were smaller in magnitude. This activity is normal now for Bárðarbunga volcano and no eruption is expected and would require a lot more earthquake activity as was seen during the 2014 August and September start of the eruption from Bárðarbunga volcano.

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Earthquake activity in Bárðarbunga volcano

Today (14-June-2020) an earthquake with a magnitude of Mw3,4 took place in Bárðarbunga volcano. This is now the regular and usual earthquake activity in Bárðarbunga volcano and is connected to inflation in the volcano after the 2014 – 2015 eruption in Holuhraun.


Earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This earthquake activity is located normally either in the south-east part of the caldera or in the north-east part of the caldera. This earthquake was located in the south-east part of the caldera. More earthquake activity is going to happen in Bárðarbunga volcano in next few months to years and should not be a surprise to anyone.

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Magnitude Mw3,5 earthquake in Bárðarbunga volcano during the night (30-May-2020)

A single earthquake took place in Bárðarbunga volcano at 01:20 UTC. This earthquake had a magnitude of Mw3,5 and no other earthquakes took place following this earthquake. This type of earthquake has been followed by stronger earthquake activity later but this is not always the case. This earthquake activity is due to inflation of Bárðarbunga volcano after the eruption in Holuhraun in August 2014 to February 2015. This earthquake was in its normal place in north-east part of Bárðarbunga volcano.


The green star shows the Mw3,5 earthquake in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This activity is normal and does not signal any eruption risk because after the eruption of 2014 and 2015 it is going to be a while until next eruption happens in Bárðarbunga volcano, probably.

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Strong earthquake in Bárðarbunga volcano during the night

During the night of 20-April 2020 a magnitude Mw4,8 earthquake took place in Bárðarbunga volcano. This activity is normal and this is the strongest earthquake in Bárðarbunga volcano since January 2020 when a magnitude Mw4,8 earthquake took place. Article on that earthquake can be found here.


The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This is how the earthquake was recorded on my geophones.


The earthquake on my first Hvammstangi geophone station.


The earthquake on my second Hvammstangi geophone station.

The traces show that there was a lot of ground displacement in this earthquake. This is due to the inflation taking place in Bárðarbunga volcano and the fact Bárðarbunga volcano collapsed during the 2014 – 2015 eruption in Holuhraun.

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Earthquake in Bárðarbunga volcano 15. February 2020

Today (15. February 2020) a magnitude Mw3,6 earthquake took place in Bárðarbunga volcano. There has not been any earthquake activity in this area since this earthquake took place.


The earthquake activity in Bárðarbunga volcano today. Copyright of this image belongs to Icelandic Met Office.

This earthquake shows that Bárðarbunga volcano is slowly inflating again after the eruption in Holuhraun 2014 to 2015.

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Earthquake in Bárðarbunga volcano

Today (26-January-2020) at 14:25 UTC an earthquake with magnitude of Mw3,7 in Bárðarbunga volcano. This was a single earthquake but that does not rule out a second earthquake in Bárðarbunga volcano is going to happen in next few hours. That might not happen since a second earthquake doesn’t always appear.


Earthquake activity in Bárðarbunga volcano today (26-January-2020). Copyright of this image belongs to Icelandic Met Office.

This earthquake shows that Bárðarbunga volcano continues to inflate at fast speed. When next eruption is going to happen is impossible to know but shortest time between eruptions in Bárðarbunga volcano is just 3 to 8 years.

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Magnitude Mw4,8 earthquake in Bárðarbunga volcano

I hope everyone had good Christmas and good new year 2020.

Today (05-January-2020) at 04:32 UTC an earthquake with magnitude Mw4,8 took place in Bárðarbunga volcano. Second earthquake with a magnitude of Mw4,0 took place at 04:56 UTC. Other earthquakes that took place were smaller in magnitude. This are among the strongest earthquakes in Bárðarbunga volcano since the end of the eruption in Holuhraun in 2015.


The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This earthquake activity was at the same location as most of this earthquakes happen in Bárðarbunga volcano. At the north-east part of the Bárðarbunga volcano top caldera. This is also close to the locations were the hydrothermal activity at this location has melted though the glacier.

I was unable to record this earthquake because of GPS time rollover error in my GPS clocks that I use and it affects the software I use and time stamps on the recorded events. I need to do a software update on the GPS clocks before I can use them again. I am going to do that in late February or early March. I need to update every GPS clock that I own.

Moving back to Iceland

It has turned out that my income gap is because I am living in Denmark and there’s nothing I can do about it (lowering costs didn’t work as I hoped). Because of this I am moving back to Iceland permanently. I am going to stay in Europe (Germany?) for time to time but I am going to be permanently living in Iceland because of this.

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Magnitude Mw3,8 earthquake in Bárðarbunga volcano (01-December-2019)

On 01-December-2019 a earthquake swarm took place in Bárðarbunga volcano. There were two magnitude Mw3,0 earthquake in this earthquake swarm and one magnitude Mw3,8 earthquake. Few smaller earthquakes also took place in this earthquake swarm.


The earthquake swarm in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

This earthquake activity is now normal for Bárðarbunga volcano and has been going on since the end of the Holuhraun eruption in February 2015. More of this earthquake activity can be expected to happen without any warning. This does not mean that an eruption is on the way in any imminent future.

I am sorry for how late this article this.

Donations (late update)

If you want to support my work it is possible to do so with PayPal donations with the donation button. If you want to send me a direct donation it is possible to do so on the email address jonfr3600@8930a1.talbot.shared.1984.is, if you have older email address please update your email address for this type of donation. Please contact me at volcano@8930a1.talbot.shared.1984.is for bank information but in general that should not be required since PayPal is good enough for this for most people. Thanks for the support. 🙂