Earthquake swarm in south TFZ (Tjörnes Fracture Zone)

Yesterday (12-January-2016) an earthquake swarm started in Tjörnes Facture Zone, south part of it. The earthquake swarm it self was a minor one, with strongest magnitude earthquake at magnitude 2,4. Other earthquakes so far have been smaller in magnitude. At the moment around 92 earthquakes have been recorded, over the past few hours the earthquake swarm has died down a little, but it might pick up at any time or stop completely, it is not possible to know what happens next.

The earthquake swarm in TFZ. Copyright of this image belongs to Iceland Met Office (

Earthquake swarms are common in TFZ so I write about it frequently. This area can have eruptions (based on historical data), but nothing suggest that is earthquake swarm is nothing more than a fault line earthquake activity in this area. The risk of stronger earthquakes remains high at the moment, if any such earthquakes happens is impossible to know. A magnitude 6,0 earthquake hit this area 40 years ago, the epicenter of that earthquake is slightly more east than current earthquake swarm (news in Icelandic with pictures can be found here ).


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