For the past few days there has been a minor earthquake swarm north of Geysir (a minor volcano in this area). The earthquake swarm has not been inside the volcano, it has been just outside it. The earthquakes have all been tectonic in nature so far.
Minor earthquake swarm north of Geysir. Copyright of this image belongs to Icelandic Met Office.
All of the earthquakes that have taken place are minor in magnitude. With the largest only having magnitude 2,5. Others earthquakes being smaller in magnitude. So far only 25 earthquakes have taken place. The earthquake swarm seems to be ongoing, it however has slowed down in last few hours and it might end soon.