Yesterday (27-January-2021) an earthquake swarm started in Prestahnúkar volcano. Largest earthquake in this swarm had a magnitude of Mw3,0 and other earthquakes where smaller in magnitude.
![Yellow earthquake on the south-west side of the volcano. In the former glacier Ok.](https://icelandgeology.net/wp-content/uploads/2021/01/210128_0555.png)
This earthquake swarm has stopped but it might start again since earthquake activity in this area is often slow to start and goes on for a long time, up to 1 to 3 years. There is no sign that magma is at work in this earthquake swarm.