Today (5-July 2024) an earthquake swarm started in Brennisteinsfjöll volcano. Largest earthquake had a magnitude of Mw3,1 at 07:17 UTC. This earthquake was felt in Reykjavík and nearby areas.
At the writing of this article, the earthquake swarm seems to have stopped. It might restart again, since that is common in this volcano and in this area.
Yesterday (26-June 2024) at 17:07 UTC an earthquake with magnitude of Mw3,1 took place in Brennisteinsfjöll volcano, not far from Bláfjallaskáli area. That is a popular skiing area during the winter.
This earthquake was part of a small earthquake swarm in the same area. It seems to have quieted down again.
Yesterday (19-June 2024) at 21:26 UTC. The largest earthquake in this swarm had a magnitude of Mw3,3. Several smaller earthquakes happened soon after.
Since then this activity has quieted down. It is impossible to know if anything more is going to happen in Katla volcano at the moment. There is more activity in Katla volcano during the summer in Iceland.
This is a short update on the eruption in Sundhnúkagígar on 30. May 2024 at 00:49 UTC. This might be the only update on this eruption, since normally, eruptions in Sundhnúkagígar only last one to three days normally. If that happens now remains to be seen.
Yesterday (29. May 2024) at 12:46 UTC an eruption started in Sundhnúkagígar, close to a small mountain called Sýlingafell and other nearby mountains. This is also the same area that has had eruptions in recent months. This eruption was large and peaked at 2000m3/sec. Since then it has slowed down and is maybe only around 200m3/sec to 600m3/sec for now. The flow from the eruption is going to change without warning and quickly. The eruption fissure today was at the longest around 4 km long. Currently, at the writing of this article, the eruption fissure is around 1 to 2,5 km long. How long the fissure is going to change without warning.
Eruption started in Sundhnúkagígar area í Svartsengi volcano. The start of eruption seems to have been at 12:47 UTC or around that minute. The fissure is getting longer as this article is being written.
Eruption is about to start in Svartsengi volcano in Sundhnúkagígar area. This is unlikely to be a dyke intrusion event only. I’ll post update once the eruption has started.
Today (6. May 2024) at 17:43 UTC an earthquake with magnitude of Mw3,3 took place in Krýsuvík-Trölladyngja volcano. This earthquake was felt in Reykjavík area.
At the writing of this article. This earthquake swarm is ongoing. It however has not constant and only has few earthquakes every once in a while at the writing of this article. This earthquake activity might increase, because it might be connected to stress changes in the crust because of inflation in Svartsengi volcano.
Today (5-May 2024) at 20:33 UTC an earthquake with magnitude of Mw3,5 took place close to Eldey on the Reykjanes ridge. This is out in the ocean and considerable distance from land, so more earthquakes are happening then are being registered by Icelandic Met Office.
This earthquake swarm is ongoing at the writing of this article. There are earthquakes that are only going to appear on Icelandic Met Office website after manual review in this earthquake swarm.
Today (22. April 2024) at 04:53 UTC an earthquake swarm started in Reykjanes volcano. This was not a strong or a large earthquake swarm. Largest earthquake only having a magnitude of Mw3,1. All other earthquakes where smaller in magnitude.
This earthquake activity suggest a magma movement. It is however too little to start an eruption at the writing of this article. That can change without warning. Since the condition that the Reykjanes volcano is in is unclear, since its in part under the ocean and that makes monitoring it properly difficult and impossible in some areas.
I am sorry how late I am with this article. I was busy yesterday (13. April 2024) and I was unable to write this article at that time.
Yesterday (13. April 2024) at 10:02 UTC an earthquake with a magnitude of Mw3,3 took place just south of Kleifarvatn lake in Krýsuvík volcano. This earthquake swarm seems to have happened on a fault that is mostly known for earthquakes that are connected to tectonic movements in the area. This is not a fault that is connected to volcano related activity, as those are more in south-west and north-east direction. Faults that are connected to crust movement in this area have the direction north-south as seems to be the case this time. It complicates matter that magma movement deep in the crust can result in earthquakes happening on both type of faults. As I suspect what happened here.
Krýsuvík volcano is not ready to start an eruption, best I can see. It is also missing a lot more earthquake activity before an eruption starts. But the signs that it is moving in that direction have started to appear. How long the wait is going to be when a eruption starts is impossible to know.
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