Yesterday (19-July-2020) at 23:36 UTC an earthquake with magnitude Mw5,1 took place 0,3 km south-west of a mountain called Fagradalsfjall that is inside Reykjanes volcano. This is the same location that I wrote about in earlier article. At the writing of this article 1340 earthquakes have happened over the last 48 hours. Second largest earthquake took place at 06:23 UTC today (20-July-2020) and had a magnitude Mw5,0. At the writing of this article 26 earthquakes with magnitude above Mw3,0 have taken place. Some rock slides have happened during this earthquake swarm when the largest earthquake took place and more rock slides might happen in this activity.
The earthquake activity on the Reykjanes peninsula in the Reykjanes volcano. A lot of wrong locations are on this map because the SIL network can’t handle all the earthquakes that are happening. Copyright of this image belongs to Icelandic Met Office.
This earthquake activity has been connected to magma injection and inflation in Reykjanes volcano. Currently it is not known if magma has moved into the direction were this earthquake swarm is. At the writing of this article the earthquake swarm has slowed down in activity. How long this slowdown is going to last is difficult to know for sure. There is more risk for strong earthquakes in this area.