Posted on by Jón Frímann

Earthquake activity in Bárðarbunga volcano (Week 17)

After a short period of quiet, it seems that Bárðarbunga volcano has started again making earthquake swarms. The source of this activity is the same as before, inflation of Bárðarbunga volcano and infiltration of magma at shallow depth (that might not erupt).

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The earthquake activity in Bárðarbunga volcano. Copyright of this image belongs to Iceland Met Office.

Largest earthquake in this swarm had the magnitude of 3,4. Other earthquakes in this swarm had smaller magnitude. The number of earthquakes in this swarm was typical, around 20-ish. Currently the activity has stopped, but it is going to start again in few days, as has been the pattern since end of the eruption in February 2015.

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The magnitude 3,4 earthquake as it appeared on the vertical axes (Z) in Heklubyggð geophone. The signal is filtered at 2Hz. This image is under Creative Commons License. Please see CC License for more details.

8 Replies to “Earthquake activity in Bárðarbunga volcano (Week 17)”

  1. Thanks for the update Jon although your premonition of more activity was way off Bardy has thrown out another 3.3 already!
    Tuesday 03.05.2016 06:23:35 64.622 -17.419 2.5 km 3.3 99.0 5.6 km ESE of Bárðarbunga

    Also what is happening at Herðubreið seems like activity there is also taking place?

    in Kilometers

    1. please ignore the “in Kilometers” sorry that came from something I am dealing with regarding my medical income tax deductions. LOL No idea how it got pasted into this forum .

  2. At it again:
    Friday 06.05.2016 19:51:27 64.624 -17.470 2.5 km 3.2 99.0 3.3 km ESE of Bárðarbunga
    Friday 06.05.2016 19:50:02 64.612 -17.510 1.1 km 1.1 90.02 3.3 km SSE of Bárðarbunga

  3. I see 2 stars on the map and 2 3.2 on the list but the graph below the map only shows 1 over 3 ??

  4. Dear Jack, I think it shows only one, because there’s only 74 seconds between the two 3,2 quakes, on the graph it looks then as if there was only one (they are ‘on top’ of each other).

    Kind regards,

    Henk Weijerstrass
    Holland

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