Deep earthquakes in Katla volcano

Yesterday (23-April-2015) there where deep earthquakes in Katla volcano. So far only six deep earthquakes have been recorded. The deepest earthquake had the depth of 26,6 km. The largest earthquakes in this swarm had the magnitude of 2,2.

150424_1245
Earthquake activity in Katla volcano. Copyright of this image belongs to Icelandic Met Office.

Earthquake activity at this depth is rarely due to tectonic activity, it is mostly due to magma movements or pressure changes of the magma. It is impossible to know for sure what is going on. No harmonic tremor was detected following this earthquake activity and there is nothing suggesting anything else then just earthquake activity in Katla volcano at the moment.

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Article updated at 16:21 UTC.

This entry was posted in Dyke intrusions, Earthquakes, Katla / Mýrdalsjökull, Magma, Monitoring, Swarm, Volcano. Bookmark the permalink.

6 Responses to Deep earthquakes in Katla volcano

  1. SteveG says:

    M 7.8 – 34km ESE of Lamjung, Nepal
    2015-04-25 06:11:26 UTC 28.147°N 84.708°E 15.0 km

    On Jon’s BHRZ station it arrives at 06:22
    http://www.jonfr.com/webicorders/bhrz.gif

    On Icelandic tremor charts it looks like this:
    http://hraun.vedur.is/ja/vatnajokulsvoktun/oroi_kre.html
    http://hraun.vedur.is/ja/vatnajokulsvoktun/oroi_mko.html
    http://hraun.vedur.is/ja/vatnajokulsvoktun/oroi_grf.html

  2. Down Under says:

    Harmonic signal detected at GRF.

    http://hraun.vedur.is/ja/oroi/grf.gif

  3. Gwen says:

    I’m not able to refresh the drumplots anymore, did they change the address of the server?
    http://hraun.vedur.is/ja/drumplot/von.png

Comments are closed.