Month: October 2018

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Earthquake swarm in Krýsuvík

Today (28-October-2018) at 10:52 UTC an earthquake with magnitude of 3,0 took place in Krýsuvík volcano and since then there has been a minor earthquake swarm happening at that location. This earthquake swarm is not part of the volcano, this looks like a tectonic earthquake swarm due to rift zone activity in this area.


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

The strongest earthquake was felt in Hafnarfjörður, Reykjavík and other nearby towns. At the moment it is unclear if this earthquake swarm is just starting or if it has already ended. It is possible that more earthquakes are going to happen in this area without warning.

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New measurements confirm Öræfajökull volcano continues to inflate

This based on news from Rúv. I am not translating the news item it self. The link is at the end of this article in Icelandic.

According to latests news on Rúv. Öræfajökull volcano continues to inflate at an increased rate. This has resulted in larger earthquakes in recent months and larger energy release in those earthquakes. Deformation has been clearly detected in Öræfajökull volcano and magma is now collecting just above 5 km depth according to measurements. Earthquake activity has increase compared to 2017 and seems to be increasing at the moment.

Rúv News

Kvika að safnast saman undir Öræfajökli (Rúv.is, Icelandic)

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Magnitude 4,6 earthquake in Bárðarbunga volcano

At 00:08 UTC on 23-October-2018 a magnitude 4,6 earthquake took place in Bárðarbunga volcano. This is the strongest earthquake in Bárðarbunga volcano for at least three months. A second earthquake with a magnitude of 3,5 happened at 00:12 UTC. This earthquake activity had earlier smaller earthquakes happening in Bárðarbunga volcano. It started yesterday (22-October-2018) with few minor earthquakes.


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

Other earthquakes in this earthquake activity were smaller in magnitude. This type of earthquake activity in Bárðarbunga volcano is now common after the end of the eruption in 2015.

Update on 24-October-2018

Icelandic Met Office has revised the magnitude of few of the earthquakes that happened in Bárðarbunga volcano. Now the magnitudes of the largest earthquakes are magnitude 3,9, magnitude 4,6 and magnitude 3,5.


Updated map of the earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.

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Article updated at 15:17 UTC on 24-October-2018.

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Earthquake swarm north of Kolbeinsey island

Today (19-October-2018) a earthquake swarm took place north of Kolbeinsey island. Due to distance from the SIL network only the largest earthquakes are being recorded.


Earthquake swarm north of Kolbeinsey island (green star). Copyright of this image belongs to Icelandic Met Office.

Largest earthquake detected so far has a magnitude of 3,3 and the second largest has a magnitude of 3,0. Other earthquakes that are being detected are smaller in magnitude but all are over 2,5 in magnitude. The sensitivity of the SIL network isn’t good this far from the coastline. It is unclear if this earthquake swarm is ongoing or not.

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Earthquake activity continues in Öræfajökull volcano

Earthquake activity continues in Öræfajökull volcano as before. Earthquake swarm happen now every few days and most of them are minor in terms of magnitude and number of earthquakes that happen. Today (15-Ocotober-2018) the largest earthquake that happened in Öræfajökull volcano had a magnitude of 2,1 and 1,5. Other earthquakes are smaller in magnitude.


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

This earthquake activity is due to magma flowing into Öræfajökull volcano at depth. What that depth is unclear at the moment. This earthquake activity happens in pluses with quiet period between them.

Update on the donation for new hardware

Thanks to donations last week I almost have all the money to buy a Raspberry Shake seismometer. I am still missing around ~268€ in order to buy the Raspberry Shake station. With this new hardware I am going to be able to provide a lot better data from what I currently have. This includes I hope a spectrograph of an earthquake (I need a linux computer for this. I’ll set one up once I’ve moved to Spain). I can’t do that with my current old hardware and software. For those that have donated already. Thanks so much for the support. 🙂

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Earthquake swarm on Reykjanes peninsula

Today (3-Ocotber-2018) there has been a earthquake swarm on Reykjanes peninsula. Most earthquakes have been small and not found, but the largest earthquake in this earthquake swarm had a magnitude of 3,2.


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

The largest earthquake was felt in the blue lagoon. It seems that this earthquake swarm has stopped for now.

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Earthquake activity in Öræfajökull and Bárðarbunga volcanoes

This is article is set-up in this way to save me some time due to the fact that I have to go to work tomorrow at 07:00 UTC (this is until 23rd October 2018).

Öræfajökull volcano

Since yesterday (01-October-2018) there has been a earthquake swarm in Öræfajökull volcano. There has been several dozen earthquakes in this earthquake swarm. Most of them are small. Largest earthquake in this swarm had a magnitude of 3,1 and was felt on nearby farms (there is no town or village close to Öræfajökull volcano). This earthquake swarm is currently ongoing.

Bárðarbunga volcano

A magnitude 3,0 and 3,6 earthquakes happened in Bárðarbunga volcano today. The smaller earthquake happened early in the morning but he larger one at 13:08 UTC. There hasn’t been any large amount of earthquake activity following this earthquakes. This is now the normal pattern of Bárðarbunga volcano since the eruption 2014 – 2015 (Holuhraun).


Earthquake activity in Bárðarbunga and Öræfajökull volcanoes. Copyright of this image belongs to Icelandic Met Office.

Donations

Please remember to support my work with donations. See pinned article for what I need for Raspberry Shake seismometer network upgrade. Thanks for the support. 🙂