Earthquake swarm in Torfajökull volcano

Today (27-January-2019) at 10:01 UTC an earthquake swarm started in Torfajökull volcano, western part of the caldera. Largest earthquake in this swarm had a magnitude of 3,7 and was felt on nearby farms. There are no tourists in this area of Iceland this time of the year (generally).


Earthquake swarm in Torfajökull volcano. Copyright of this image belongs to Icelandic Met Office.

Largest earthquake in last few hours had a magnitude of 2,3. Other earthquakes have been smaller in magnitude. This earthquake swarm is currently ongoing and information might change without warning.

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4 Replies to “Earthquake swarm in Torfajökull volcano”

  1. Conductivity in Múlakvisl had a maximum of 1123 microsiemens/cm earlier today. Now it has dropped and is “only” 685.

    It’s a shame the AUS tremor and drumplot stations are down. There might have been useful microseismic activity along with this.

      1. I forwarded the questions to IMO. The reply:

        “The spike in the electrical conductivity measurements at Múlakvísl were indeed because of icing and sediments. Because the river is a braided river, it changes its flow path rapidly. This makes it extremely difficult to monitor the river, as the conductivity meter often submerges in sediments and dirt. We have staff trying to keep up with the river to measure the actual water conductivity.

        That said, the actual conductivity is rather high, because of ongoing cold weather and more hydro-thermal water in the river.

        There are issues with Austmannsbunga seismic station because of winter conditions on the glacier and it will be fixed the next time there will be a trip on the glacier.”

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