Two earthquake swarms in Tjörnes Fracture Zone (TFZ)

Over the last few days there has been small earthquake swarm activity in Tjörnes Fracture Zone. The activity has been in two locations, west of Kópasker village and east of Grímsey island (ongoing swarm). Both earthquake swarms are small for now and only few earthquakes larger than magnitude 2,0 have happened. Total number of earthquakes is around 146 for the whole Tjörnes Fracture Zone when this article is written.


Current earthquake activity on the Tjörnes Fracture Zone. Copyright of this image belongs to Icelandic Met Office.

The earthquake swarm east of Grímsey island is not over as it has not yet peaked based on what I am seeing. It is more difficult to know about the earthquake swarm west of Kópasker village. As of writing of this article both earthquake swarms are ongoing.

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This entry was posted in Earthquakes, Monitoring, Nafir-Skjálfandadjúp, Swarm, TFZ, Tjörnes Fracture Zone, Volcano. Bookmark the permalink.

6 Responses to Two earthquake swarms in Tjörnes Fracture Zone (TFZ)

  1. Jack McIlveen says:

    Still going on
    Tuesday
    26.03.2019 08:37:44 PM 66.259 -16.516 6.4 km 3.1 5.6 km SSW of Kópasker

  2. Kaspars says:

    It looks like that we’re about to see something similar to last year’s earthquake swarm in TFZ. Looks like a magnitude 4 just happened there.

  3. David Cook says:

    We now have a 4.3 just 4km west of Kópasker. The swarm continues and is intensifying.

  4. Kay Tina Cook says:

    Green stars now in triplicate and very rapid succession.

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