Category: Magma

Posted on

Minor earthquake swarm in Katla volcano

Yesterday (18-February-2019) a earthquake swarm took place in Katla volcano. This is the first earthquake swarm in Katla volcano for a long time and it is unusual how early this activity starts.


Earthquake swarm in Katla volcano. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in this swarm had a magnitude of 3,0 and other earthquakes in this swarm were smaller in magnitude. Total of ten earthquakes took place in this swarm. This earthquake activity now seems to be over.

Gone are the advertisements

Since having advertisement banners was not adding to my income from this website (income that helps me). I have removed the advertising banners from my website. It continues to be possible to support me by buying stuff from Amazon by visiting the page Support via Amazon.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Fresh earthquake activity in Öræfajökull volcano (week 6)

During the night of 4-February-2019 a earthquake with the magnitude of 2,6 took place in Öræfajökull volcano. This earthquake was the start of an earthquake swarm that is currently ongoing.


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

This is normal pattern for Öræfajökull volcano in recent months. Rate of earthquake activity in Öræfajökull volcano appears to continue to be going up. This means that injection of magma into Öræfajökull volcano continues at what appears to be at similar rate as before.

Moving website hosting

Because of Brexit I am moving my hosting from UK to US this week. In general people should not notice this if they have their DNS setting set up correctly. But it might take up to 48 hours for them to update on slower DNS servers (that is not common today, but can happen if your router is your DNS).

Donations

Please remember to support my work. They help me keep this website running and keeping me fed so I can continue to write and update about what is happening in Iceland when it comes to volcanoes and earthquakes. Thanks for the support. 🙂

Posted on

Magnitude 3,4 earthquake just off Surtsey island (Vestmannaeyjar volcano)

During the night (31-January-2019) a magnitude 3,4 earthquake took place close to Surtsey island (Vestmannaeyjar volcano). According to Icelandic Met Office this is the largest earthquake in this location since 1992.


The earthquake activity close to Surtsey island. Copyright of this image belongs to Icelandic Met Office.

Few minor earthquakes took place at this location after the largest earthquake. Good detection is difficult due to distance from the SIL network and how remote this location is.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Fresh earthquake activity in Öræfajökull volcano

Today (6-January-2019). Largest earthquake in this swarm had a magnitude of 2,4. Other earthquakes have been smaller in magnitude.


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

This earthquake swarm seems to be ongoing. There are not many earthquakes happening as is normal for Öræfajökull volcano. This activity is in the normal range of what has been happening in Öræfajökull since 2017.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Magnitude 4,8 earthquake in Bárðarbunga volcano

Last night (28-December-2018) there was a strong earthquake activity in Bárðarbunga volcano. Largest earthquake was at 01:16 UTC and had a magnitude of 4,8. Third largest earthquake happened at 01:20 UTC and had a magnitude of 3,5 second largest earthquake happened at 01:38 UTC and had a magnitude of 3,7. Last earthquake in this swarm had a magnitude of 2,8 and happened at 01:46 UTC. This earthquake swarm has now ended.


Earthquake activity in Bárðarbunga volcano (green stars). Copyright of this image belongs to Icelandic Met Office.

This earthquake activity happens since Bárðarbunga volcano is inflating and has been doing so since April or May 2015. The rate of earthquakes that are larger than 4,5 seems to be increasing (it takes a few more months to know for sure). This is the second or the third earthquake that is larger than 4,5 in Bárðarbunga volcano in 2018. It would not surprise me if an earthquake with magnitude of 5,5 or larger start to happen in few months to years time. There are no signs that this earthquake activity is going to result in a eruption from Bárðarbunga volcano.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Update for donations

If you donate directly with a bank. Please update your information. From now on all the donations that I get with a bank transfer go to my Icelandic bank. This is not going to change when I move from Iceland. New bank information can be found here on the donation website.

Article updated on 29-December-2018. Updated information about direct bank donations.

Posted on

Earthquake swarm in Bárðarbunga volcano

This morning (17-December-2018) an earthquake swarm started in Bárðarbunga volcano. Largest earthquake in this swarm had magnitude of 3,6. Other earthquakes have been smaller in magnitude.


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

This earthquake activity is a sign that Bárðarbunga volcano has not slowed down on inflating. I don’t know how much the inflation is since I have not seen GPS data for Bárðarbunga volcano in a while.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Earthquake swarm in Öræfajökull volcano

Today (8-December-2018) there has been a fresh earthquake activity in Öræfajökull volcano. This earthquake swarm was in the northern part of the caldera, or just outside it.


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

Largest earthquake in this swarm had a magnitude of 2,6. Other earthquakes had a magnitude of 0,2 to 0,8. This is normal for Öræfajökull volcano in its current phase.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Earthquake activity in Þórðarhyrna volcano (Thordarhyrna)

During the night of 3-December-2018 earthquake activity started in Þórðarhyrna volcano (no GVP profile, under Grímsvötn volcano profile). Largest earthquake in this swarm had a magnitude of 2,1 and second largest earthquake had a magnitude of 2,0.


Þórðarhyrna volcano is located south-west of Grímsvötn volcano. Yellow dots on this image. Copyright of this image belongs to Icelandic Met Office.

Last eruption in Þórðarhyrna volcano was in the year 1902 December to 1904 12-January and was a VEI=4 eruption. An eruption happened in Grímsvötn volcano at the same time.

Donations

Please remember to support my work. Thanks for the support. 🙂

Posted on

Two earthquake swarms in Öræfajökull volcano

Today (1-December-2018) two earthquake swarm took place in Öræfajökull volcano.


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

Largest earthquakes in this two earthquake swarms had magnitude of 1,1. All other earthquakes are smaller in magnitude. What is unusual now is that there are two earthquake swarms happening in Öræfajökull volcano. In last few months only one area has been having earthquakes at time. It is worth keeping a eye out for this change if it holds.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂

Posted on

Earthquake activity in Grímsvötn (Grímsfjall) volcano

During the night of 23-November-2018 there was an magnitude 3,1 earthquake in Grímsvötn volcano (Grímsfjall). Only one aftershock appeared and it had a magnitude of 0,9.


Earthquake activity in Grímsvötn volcano (green star). Copyright of this image belongs to Icelandic Met Office.

No change happened on tremor plots following this earthquake activity. Last eruption in Grímsvötn took place in 2011.

Donations

Please remember to support my work with donations. Thanks for the support. 🙂