*This might also be a different volcano known as Svartsengi (no Global Volcanism Profile). There is no agreements between maps on this detail for now. Reykjanes volcano might only extend into Reykjanestá and then is mostly under ocean and might not extend into Reykjanes peninsula as sometimes is shown on maps.
Krýsuvík volcano has quieted down a little in the last 24 hours. Eruption risk is lower for now in that volcano.
Largest number of earthquakes detected in one day was over 3000 earthquakes.
In the last 24 hours 12 earthquakes with magnitude above Mw3,0 have happened. Most of them are felt in nearby populated areas.
No harmonic tremor has been detected since it ended during the night on 4-March-2021.
During the last 48 hours over 3300 earthquakes have been recorded by Icelandic Met Office.
New! Magma is now estimated to be at 5 to 6 km depth but might be as shallow as 2 km depth.
Maps of possible eruption areas has been made by Earth science department of University of Iceland and can be found here. University of Iceland Earth science department also made a lava flow prediction can that map can be found here. Both maps are updated daily on Facebook.
Cameras and links might go offline without warning.
It is possible to support my work with donations. It helps me in current financial situation that has remained rather bad. You should only donate if you can. Other ways to support my website is to let people know about it if they are interested in earthquakes, volcanoes and geology in Iceland. Thanks for the support. 🙂
Article updated at 16:53 UTC. Article updated at 21:13 UTC.
This is a short update since this situation is developing quickly.
No eruption has started at the writing of this article. Harmonic tremor is slightly lower compared to when it started at 14:20 UTC in Krýsuvík volcano. This drop in harmonic tremor started around 16:00 UTC. This harmonic tremor is ongoing as for writing of this article. There are no signs of the rift valley formation on the surface yet, but it does show up on measurements, both GPS and satellite measurements. Earthquake activity is high at the writing of this article but most earthquakes are small in magnitude but there are few earthquakes with magnitude of Mw3,0.
Web cameras of the possible eruption area can be found in this locations.
Yesterday (29-January-2021) at 23:34 UTC an earthquake with magnitude of Mw2,4 took place in Grímsfjall volcano (Grímsvötn). There where few smaller earthquakes before and after this largest earthquake. There where no signs of change in harmonic tremor following this earthquake activity.
It has also been reported in the news that glacier plate that is on top of Grímsfjall volcano is now the highest since 1996. Inflation is now taking place in eastern part of Grímsfjall volcano, in a location called Eystri Svíahnúkur. Magma pressure is today (30-January-2021) equal or higher than when the May 2011 eruption took place in Grímsfjall volcano.
Today (11-November-2020) a swarm of small earthquakes took place north of Grindavík town in the Reykjanes volcano. This where all small earthquakes and largest earthquake had a magnitude of Mw1,7. At the writing of this article Icelandic Met Office website lists 76 earthquakes on Reykjanes peninsula.
The earthquake activity in the Reykjanes volcano. Copyright of this image belongs to Icelandic Met Office.
There is not a big change in the GPS data but there is a small change that suggests that Krýsuvík volcano has started to inflate more after the magnitude Mw5,6 earthquake. The GPS data can be viewed at University of Iceland GPS Reykjanes time series.
Please remember to support my work. Currently I am broke and I don’t know how to make it to the end of the month. Everything is going to help me to make it properly to end of November. I hope my money situation improves next year a little but that depends on factors that I don’t have any control over. Thanks for the support. 🙂
The earthquake on 20-October-2020 was followed by a strong inflation in Reykjanes volcano. Current levels of inflation are about ~50mm according to Icelandic Met Office and can be seen on GPS measurements in recent days (GPS time series for Reykjanes).
The inflation in Reykjanes volcano. I had to scale this image because of WordPress requirements. Full size image can be found here on Icelandic Met Office website. Red is more inflation, blue is deflation or lower areas. Copyright of this image belongs to Icelandic Met Office.
This inflation appears clearly on GPS stations that are closest to this area. The area where the most inflation is a small mountain called Keilir. Last eruption in this area was sometimes during last ice age. This inflation also explains the earthquake activity that has been going on in this area for the last few days as I have written earlier about.
Current earthquake activity on the Reykjanes peninsula. Detection of smaller earthquakes is lower because of bad weather in Iceland. Copyright of this image belongs to Icelandic Met Office.
As of the writing of this article I am expecting more earthquakes and more inflation to happen in this volcano and other close by areas. It is not possible to know when a eruption is going to happen in Reykjanes volcano.
Over the last few hours there has been an earthquake swarm close to mountain called Fagradalsfjall in or close to the volcano called Reykjanes. At the writing of this article no earthquake with magnitude over Mw2,0 have happened. That might change without a warning.
The earthquake swarm in the volcano Reykjanes or close to it. Copyright of this image belongs to Icelandic Met Office.
Currently there isn’t anything suggesting that magma is on the move at the writing of this article. This earthquake swarm is something to watch out for since this might increase in size and magnitude over the next few hours. Inflation data from GPS measurements from this area are still unclear. There is also ongoing earthquake swarm north of Grindavík town but it has quieted down in last few hours.
Today (14-June-2020) an earthquake with a magnitude of Mw3,4 took place in Bárðarbunga volcano. This is now the regular and usual earthquake activity in Bárðarbunga volcano and is connected to inflation in the volcano after the 2014 – 2015 eruption in Holuhraun.
Earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.
This earthquake activity is located normally either in the south-east part of the caldera or in the north-east part of the caldera. This earthquake was located in the south-east part of the caldera. More earthquake activity is going to happen in Bárðarbunga volcano in next few months to years and should not be a surprise to anyone.
Since around 06:00 this morning (13-June-2020) a sharp increase in earthquake activity took place north of Grindavík town. The most dense earthquake swarm was located west of the Blue lagoon with other minor swarms in other nearby areas. The active volcano is Reykjanes and Svartsengi (no Global Volcanism profile). Map can be found here and here (go to Höggunarkort).
The clusters of earthquake activity close to Grindavík town. This map can be found here (Icelandic only). Copyright of this image belongs to Icelandic Met Office.
Current earthquake activity close to Grindavík town. Copyright of this image belongs to Icelandic Met Office.
Largest earthquakes at the writing of this article have a magnitude of Mw3,5 (at 20:27 UTC) but since this earthquake swarm in ongoing that number can change without warning.
There was also considerable noise during the earthquake swarm earlier. Suggesting that something is going on but I do not know what might be for now. The noise results in the blue band thickens during the earthquake swarm.
The termor plot during the earthquake swarm. Copyright of this image belongs to Icelandic Met Office.
Current GPS data (can be viewed here) doesn’t show any major changes at the writing of this article. That might change in next few days.
According to Icelandic Met Office and news at Rúv.is the inflation at Þorbjörn mountain seems to have started again after few weeks of no inflation being detected. The inflation now seems to be small but that might change without warning. There might not be a lot of earthquake activity connected to this time of inflation because the area already is inflated and there was a lot of earthquake activity earlier in the year when this started. Earthquake activity might be more common on the edges and at those location the risk of magnitude Mw6,0 earthquake is highest, but is impossible to be certain about this due to how many faults there are on the Reykjanes peninsula, both from volcanoes and rift faults due to the rift valley that is there (its just full of lava).
There was a earthquake swarm yesterday (28-May-2020) north of Grindavík town. Copyright of this image belongs to Icelandic Met Office.
How this is going to change and evolve over the next few weeks is not something that can be predicted with any certainty for now. Since there have not been any eruption in this area for close to 800 years it is not known how this volcano systems behave in a eruption and inflation phase.
Please remember to support my work with donations. Thanks for the support. 🙂
I am going to start working I hope next week in order to increase my income and making things easier for me when it comes to money from July to September. This means slightly less time to update this website if anything happens during the work day.
During the night of 20-April 2020 a magnitude Mw4,8 earthquake took place in Bárðarbunga volcano. This activity is normal and this is the strongest earthquake in Bárðarbunga volcano since January 2020 when a magnitude Mw4,8 earthquake took place. Article on that earthquake can be found here.
The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Icelandic Met Office.
This is how the earthquake was recorded on my geophones.
The earthquake on my first Hvammstangi geophone station.
The earthquake on my second Hvammstangi geophone station.
The traces show that there was a lot of ground displacement in this earthquake. This is due to the inflation taking place in Bárðarbunga volcano and the fact Bárðarbunga volcano collapsed during the 2014 – 2015 eruption in Holuhraun.
Please remember to support my work with donations. It helps me to keep this website running and just to do everyday normal thing and not to go too broke. Thanks for the support. 🙂
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.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.