Yesterday (12-October-2021) an earthquake swarm took place in Reykjanes volcano. Largest earthquake in this swarm had a magnitude of Mw3,3 and the earthquake swarm was out in the ocean not far from the coastline.
Earthquake activity out in the ocean on Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.
It is impossible to know for sure if this earthquake activity is directly connected to magma movements in this area. It is possible, but there have been some sign of magma moving in the crust in this area. The magma is moving but is not erupting or starting an eruption. Earthquake activity seems to be growing in this area of Reykjanes peninsula and Reykjanes ridge after the eruption in Fagradalsfjall mountain stopped.
The earthquake swarm with Keilir mountain continues today (2-October-2021) and largest earthquake at the writing of this article had a magnitude of Mw4,2. This might change without warning.
The earthquake activity close to Keilir mountain. Copyright of this image belongs to Icelandic Met Office.
Based on what I am seeing it is my view that magma is the reason why this earthquake activity is happening. The magma seems trapped, based on the earthquake activity and that is interesting. This suggest that the feeder channel, that possibly started at this location has closed up and that is the reason why the eruption in Fagradalsfjall mountain stopped. At least that is the working idea, if it is true I don’t know.
Department of Civil Protection and Emergency Management and Icelandic Met Office has warned people against going to Keilir mountain because of risk of volcano eruption or large earthquakes.
It is unclear at the writing of this article if there are changes to hydrothermal activity close to Keilir mountain. There have been reports about it, but they remain unconfirmed at the writing of this article.
There is now a risk of an earthquake with magnitude of Mw6,0 in the area of Keilir mountain. The earthquake activity shows a pattern of high and low activity every few hours. Why this happens is not well understood at the writing of this article.
Today (3-September-2021) an small earthquake swarm took place in Esjufjöll volcano. This is the first earthquake activity in a while and suggest that there might be about to start more earthquake activity in Öræfajökull volcano. Since activity in Esjufjöll volcano seems to result in activity in Öræfajökull volcano. How that works and why is unknown.
Earthquake activity in Esjufjöll volcano. Copyright of this image belongs to Icelandic Met Office.
Last eruption in Esjufjöll volcano may have happened in the year 1927 but that remains unconfirmed. If that eruption happened, it only lasted for 4 to 5 days at most. This area is covered with a glacier, so any eruption there is going to result in a glacier flood.
Donations
Please remember to support my work with donations. Currently I am broke in September and that’s not good. Thanks for the support. 🙂
Yesterday (30-August-2021) an small earthquake swarm took place east of Grímsey island in Tjörnes Fracture Zone. Two largest earthquakes had a magnitude of Mw3,2.
Earthquakes east of Grímsey island. Copyright of this image belongs to Icelandic Met Office.
This earthquake swarm seems to have stopped for now. This area has frequent earthquake swarms and activity in this area of Tjörnes Fracture Zone might start again without warning.
Today (14-August-2021) an earthquake with magnitude Mw3,1 took place in Katla volcano. Other earthquakes where smaller in magnitude.
Earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.
This earthquake activity appears to be normal late summer activity in Katla volcano. There was a minor increase in conductivity in nearby glacier rivers in last few days, that suggests that cauldrons have been emptying their water this summer. This is normal and happens almost every summer due to glacier melt.
Yesterday (11-August-2021) there was a earthquake swarm on Reykjanes ridge. This earthquake swarm was not felt because of distance from the coastline.
Earthquake activity on Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.
Largest earthquake in this swarm had a magnitude of mb4,4 according to EMSC. Information about this earthquake can be found here. The distance from the SIL network made it difficult to know when this earthquake swarm started and stopped.
It is unclear if this part of the activity period that Reykjanes peninsula and Reykjanes ridge is now entering and is going to last for few centuries.
Donations
Please remember to support my work with donations. They help a lot more then the income from advertisement (as is the case everywhere). Thanks for the support. 🙂
During the night and today on 5-Augustu-2021 an earthquake swarm took place in the Reykjanes volcano.
Earthquake activity in Reykjanes volcano. Copyright of this image belongs to Icelandic Met Office.
Largest earthquake in this swarm had a magnitude of Mw3,0 and other earthquakes at the writing of this article have been smaller. That can change without warning. Currently there is a possibly that this earthquake swarm is over.
Donation
Please remember to support my work with donations. It helps me keeping my self and this working going on. Thanks for the support. 🙂
During the night of 5-August-2021 an earthquake swarm took place in Tjörnes Fracture Zone (TFZ). At the writing of this article this earthquake swarm is ongoing.
Earthquake activity south-east of Grímsey island. Copyright of this image belongs to Icelandic Met Office.
Largest earthquake in this swarm had a magnitude of Mw3,0. Other earthquakes where smaller in magnitude. No earthquake has been felt in Grímsey island.
Donation
Please remember to support my work with donations. Since donations help me keeping this website and my self going. Thanks for the support. 🙂
At midnight on 1-August-2021 an earthquake swarm seems to have started deep on the Reykjanes ridge. The current distance seems to be around 220 km away from Reykjavík or 190 km from Grindavík town. At this distance the location from Icelandic Met Office are not accurate. At the writing of this article the earthquake swarm seems to be ongoing.
The earthquake activity as it is shown on Icelandic Met Office map. Copyright of this image belongs to Icelandic Met Office.
Largest earthquake recorded at the writing of this article had a magnitude of Mw5,2 and the rest of the earthquakes have magnitude between Mw4,0 and Mw4,8. Overview of this earthquake activity can be found here on EMSC website. This links works as I publish this article. How long it is going to work I don’t know.
The current distance makes it impossible to know for sure what is going on at this location. The pattern of this earthquake activity suggests that this might be earthquake activity because of magma movement in the crust, but there is not any way to confirm this because of the location. Even if there is an eruption at this location it won’t make any difference to the surface of the ocean, since depth of the ocean at this location is more than 1 km. I don’t know the exact depth.
Today (31-July-2021) at 12:53 UTC an earthquake with magnitude of Mw3,3 took place in Katla volcano. A swarm of smaller earthquakes continued after the largest earthquake, this earthquake activity seems to be ongoing at the writing of this article.
Earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.
Summer earthquake activity in Katla volcano is common and that makes it less clear what is going on in Katla volcano at the writing of this article. There is now a chance of more earthquake activity in Katla volcano.
Cookie acceptance
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
