This morning (01.03.2017) there was an strong earthquake swarm in Bárðarbunga volcano. Strongest earthquake in this swarm had the magnitude of 4,1 and other earthquakes where smaller. Total of 5 earthquake happened with magnitude above 3,0.
The earthquake swarm in Bárðarbunga volcano. Green stars are the earthquakes with magnitude above 3,0. Copyright of this image belongs to Icelandic Met Office.
This is how the largest earthquake with the magnitude of 4,1 appeared on my geophones.
The magnitude 4,1 earthquake at Heklubyggð geophone. Shows strong surface wave activity. Filtered at 1Hz. This image is under Creative Commons Licence. See CC Licence site for more details.
The magnitude 4,1 earthquake at Böðvarshólar geophone. Filtered at 4Hz. This image is under Creative Commons Licence. See CC Licence site for more details.
This earthquake activity happens due to magma influx into Bárðarbunga volcano, resulting in a inflation. The last month (February 2017) has been the most quiet since end of the eruption in Bárðarbunga volcano in February 2015.
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Wow is this a start of something bigger or just letting us know There is still some life there yet?
Nothing imminent. Bardarbunga is still a few years away from being able to start a new eruption. Unless the pressure builds sooner with stronger dike intrusions. But nothing is indicating that for now.
Is this EQ linked to the activity in Iceland .
Magnitude Mw 4.9
Region ICELAND REGION
Date time 2017-03-02 19:13:15.6 UTC
Location 61.36 N ; 27.44 W
Depth 10 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=573133
Just noticed there was also a 4.4 at 19:04 .
http://www.emsc-csem.org/Earthquake/earthquake.php?id=573133