Category: Swarm

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Strong earthquake and deep earthquake swarm in Bárðarbunga volcano

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.

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Update on the Tjörnes Fracture Zone earthquake swarm

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.

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Earthquake swarm on eastern Tjörnes Fracture Zone (close to the coastline)

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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Please remember to support my work because running this website costs money and so does moving as explained here. Thanks for the support. 🙂

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Minor earthquake activity in Tungnafellsjökull volcano

Today (13-October-2019) a minor earthquake swarm took place in Tungnafellsjökull volcano. After the eruption in Bárðarbunga volcano there has been a ongoing earthquake activity in Tungnafellsjökull volcano, why that it is remains unexplained. There are suggestion in recorded data that magma is moving inside the volcano at slow rate but that remains unclear for now.


The earthquake activity in Tungnafellsjökull volcano (red dots north of Bárðarbunga volcano). Copyright of this image belongs to Icelandic Met Office.

Tungnafellsjökull volcano has no known eruption history in last 12000 years so its impossible to know what signs if any appears before an eruption happens. Currently there are no clear signs that Tungnafellsjökull volcano is preparing for an eruption. This might just be after-effect of the eruption in Bárðarbunga volcano that placed a lot of crustal strain on Tungafellsjökull volcano and resulted in a lot of earthquake activity in that volcano during the early start of that eruption in Bárðarbunga volcano.

Donations

Currently there is only need for about 37.259 ISK (263€/$292USD) until I have all the money needed for paying for moving of my belongings and to get them delivered to me on time without having to pay a lot of storage charges (if any). Unfortunately I have to use tiny amount of this money to pay for transport and little food costs in Iceland and Denmark. I am going to keep that amount to absolute minimal amount. Thanks for the support. 🙂

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Minor earthquake activity in Krafla volcano

Today (12-October-2019) during the night there was a small earthquake activity in Krafla volcano. This earthquake activity is minor and largest earthquake had a magnitude of Mw1,0 and all other earthquakes were smaller in magnitude.


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

There is a chance this earthquake activity is the result of water being pumped into the crust under high pressure. If that’s not the case this is just normal tectonic earthquake activity that sometimes happens in this area.

Donations

As I did explain here in this article my move to Denmark has hit a little problem. The problem is that my cost estimates were under the plan that I had and now I am currently in need of 375€ in order the pay for the cost of moving my belongings to Denmark. Any support to help me cover the remaining cost is welcomed. The sooner I can pay the transport cost the cheaper it is going to be for me, since storage charges are going to be added if I have to wait until 1st November to pay the transport cost of my belongings. This also delays me in many ways since all my hardware is now in transit and I can’t have access to it until I pay the transport cost of my belongings. Thanks for the support. 🙂

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Minor earthquake activity in Hekla volcano

Today (8-October-2019) there has been a minor earthquake activity in Hekla volcano. Largest earthquake has a magnitude of Mw1,2.


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

At the writing of this article there is no change in harmonic tremor on SIL stations around Hekla volcano. Icelandic Met Office and Department of Civil Protection and Emergency Management are both monitoring the situation in Hekla volcano.

Donations

Please remember to support my work. I am also currently moving to Denmark and that is really expensive so any help with that is welcomed. Thanks for the support. 🙂

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Earthquake swarm close to Eldeyjarboða on Reykjanes ridge

During the night (29-September-2019) a small swarm of earthquake took place not far from Eldeyjarboði on Reykjanes ridge. Largest earthquakes had the magnitude of Mw3,1 and Mw3,3. This earthquake swarm is far from Iceland and recording of this earthquake swarm is poor because due to distance from the SIL network.


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

This earthquake swarm seems to be over and no earthquakes have been recorded for the last few hours. Detection is smaller earthquakes is limited and that might be giving the wrong impressions about this activity.

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Minor earthquake swarm in Hengill volcano

Today (11-September-2019) at 09:42 UTC a magnitude 3,0 earthquake took place in Hengill volcano. The largest earthquake was felt in Hveragerði village. They also felt a minor magnitude Mw1,7 that happened at 05:22 UTC. The reason why that earthquake was felt is because it took place inside the town under some person house (or close to someone house).


The earthquake swarm in Hengill volcano today (11-September-2019). Copyright of this image belongs to Icelandic Met Office.

Earthquake activity is a regular feature in this area.

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Small earthquake swarm on Reykjanes peninsula

A small earthquake swarm took place this morning (11-September-2019) just north of Grindavík village this morning. A magnitude Mw3,4 earthquake took place at 06:06 UTC and was felt in Grindvík village.


Earthquake activity north of Grindvík (green star on the left). Copyright of this image belongs to Icelandic Met Office.

This earthquake activity is normal tectonic earthquake activity.

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Magnitude Mw4,2 earthquake in Bárðarbunga volcano

Today (8-September-2019) at 02:00 UTC earthquake swarm started in Bárðarbunga volcano. From 02:00 to 02:03 UTC total of five earthquake took place in Bárðarbunga volcano. Largest of them had a magnitude of Mw4,2 and second largest had a magnitude of Mw3,2. Other earthquakes that took place had a smaller magnitude.


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

Earthquake activity like this in Bárðarbunga volcano is common. This type of earthquake activity happens once every month after the end of the eruption in Holuhraun (2015).