Category: Volcano

Posted on

Earthquake in Hamarinn volcano

Today (23-November-2018) at 21:35 UTC an earthquake with magnitude of 3,5 took place in Hamarinn volcano (No GVP, is under Bárðarbunga volcano, also known as Loki-Fögrufjöll). Last unconfirmed eruption was in July 2011 and lasted ~12 hours. It resulted in a glacier flood and did not break the glacier. That eruption was only visible on harmonic tremor measurements.


Hamarinn volcano activity (green star to the left). Copyright of this image belongs to Icelandic Met Office.

It is possible that more activity is on the way, before the eruption in 2011 there was a increase in earthquakes in Hamarinn volcano. The same pattern seems to be happening now. The July 2011 eruption started without any earthquake activity, suggesting that magma is shallow in the crust already and doesn’t need any major change in pressure to start an eruption.

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. 🙂

Posted on

Strong sulphur smell from Sólheimajökull glacier (Katla volcano)

Today (21-November-2018) Icelandic Met Office issued a warning about strong sulphur smell from Sólheimajökull glacier and Jökulsá á Sólheimasandi (connected glacier river) that come from Katla volcano. People are advised to stay away from this area because if the sulphur smell. There hasn’t been any connected earthquake activity with this increase in sulphur smell.


Katla volcano is quiet. Copyright of this image belongs to Icelandic Met Office.

There is no earthquake activity and no change has been observed on harmonic tremor plots around Katla volcano at this moment. This is unlikely to change, since earthquake activity has been minimal in 2018.

Posted on

Two earthquakes in Bárðarbunga volcano

Today (12-November-2018) at 19:21 and 19:23 UTC two earthquakes took place in Bárðarbunga volcano. The first earthquake had a magnitude of 3,6 and the second earthquake had magnitude of 3,3. Other earthquakes that have happened so far have been smaller in magnitude.


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

This earthquake activity is ongoing in Bárðarbunga volcano.

Donations

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

Posted on

Earthquake activity in Grímsvötn volcano

During the night there was an earthquake swarm in Grímsvötn volcano. Largest earthquake in this swarm had a magnitude of 2,6 and other earthquakes were smaller in magnitude.


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

Yesterday (06-November-2018) there was also earthquake activity in Grímsvötn volcano but it was at lot smaller scale then what happened during the night. At the moment there are no signs that Grímsvötn volcano are about to erupt. There has not been any more earthquake activity today.

Posted on

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.

Donations

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

Posted on

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)

Posted on

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.

Donations

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

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

Posted on

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. 🙂

Posted on

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. 🙂