Today (22-November-2022) an earthquake swarm took place in Kolbeinsey island. This is far north of Grímsey island. Largest earthquake had a magnitude of Mw3,1 and total of four of those earthquakes happened. More than dozen smaller earthquakes have happened. Because how far this activity is from Icelandic Met Office SIL network only the largest earthquakes are being measured.
What is going on is unclear. This might just be normal tectonic activity for this area. There is only poor monitoring of this area since its out in the ocean and remote.