During the night of 9-April-2018 a swarm of earthquake appeared in Öræfajökull volcano. This activity has quieted down again for now. Largest earthquake in this swarm had a magnitude of 1,5 but all other earthquakes appear to be smaller than 1,0 in magnitude. Depth seems to have been at 6 – 8 km, but depth information doesn’t seems to be fully accurate. I don’t know why that is. Total number of earthquakes was 22 in this swarm.
I am not sure why this earthquake swarm activity pattern happens and then vanishes. I do find it troubling that it does this and I think this is happening more frequently now than before. Earthquake magnitudes continue to be small but that might not be the whole story of what is currently happening in Öræfajökull volcano. There is no major change in conductivity in the glacier rivers from Öræfajökull volcano.