At 09:41 UTC on 19-December-2016 a small earthquake swarm started on the Dalvík fault-line, that fault-line is part of TFZ (Tjörnes Fracture Zone area). The largest earthquake was felt over a wide area, including Akureyri and other nearby towns. Largest earthquake in this swarm had the magnitude of 3,5 and the second largest earthquake had the magnitude of 1,6. The largest earthquake depth was 12,3 km.
The green star show the active area. Copyright of this image belongs to Icelandic Met Office.
When this text is written it seem that the earthquake activity has dropped down, just one earthquake has happened since the activity stopped at 09:49 UTC. Current level of activity is low and that might remain like that.
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What is the history of earthquake activity in Akureyri? From my observations these past three years, nearly all quakes in the area occur further north of the city. When was the last quake of at least magnitude 3.5 in this locality? Can you explain more about the Dalvík fault line?
Last large earthquake in this area, close to Dalvík was in 1963 when a magnitude 6,3 earthquake took place. I don’t have any information about the aftershocks following the main earthquake.
In this paper the fault in question is marked as “DL”.
http://www.hac.is/wp-content/uploads/2016/05/Karson-Husavik-Mtg-Abs1.pdf
I have to save this paper. It has information I was not aware of.