Early morning (14-April-2021) an earthquake swarm took place far north of Kolbeinsey island. Largest recorded earthquake had a magnitude of Mw3,5 but it possibly was larger but because of distance from the SIL network the magnitude is underestimated. I did record this earthquake on my only seismometers and it showed a lot of surface wave activity, suggesting a larger magnitude than Mw3,5.
Because of remote location of this earthquake swarm it is not possible to know what is going on there. The area is also under an ocean that is 2 to 4 km deep at this location. If anything happens it is not going to be noticed outside of being detected with seismometers.
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This is a short update on the eruption in Fagradalsfjall mountain that is part of the Krýsuvík-Trölladyngja volcano system.
Yesterday (13-April-2021) the following thing happened around 09:00 UTC.
Four new crater started erupting. This did not reduce the lava output of the other craters that are erupting.
This means that now are total of eight craters erupting in the eruption in Fagradalsfjall mountain. The area is slowly being buried by fresh lava as the eruption goes on.
On Sunday 18-April-2021 it is going to be 1 month (30 days*) since the eruption in Fagradalsfjall mountain started. *This is a calendar thing, but using a website to calculate this correctly then this is the correct day using 30 day month calendar.
There continues to be high risk of new eruption fissures opening up without warning. Both north and south of the crater 1.
Gas output from the eruption has more than doubled in last few days. This is starting to create problem if wind blow the gas over populated areas.
I don’t have any more updates as is. If anything more happens I’ll update soon as I can. Since there is a risk of this eruption is going to last for a real long time, up to several years I might change my update schedule from what it is now. I’ll figure that out as the eruption continues.
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