Posted on by Jón Frímann

Deep earthquakes in Bárðarbunga and Tungnafellsjökull volcanoes

Even if the eruption in Holuhraun and Bárðarbunga volcano is over, there is no shortage of activity in Bárðarbunga volcano. With deepest earthquake in past 48 hours having the depth of 28,6 km and earthquakes don’t get a lot deeper than this in Bárðarbunga volcano. At this depth earthquake activity happens due to magma movements rather than tectonic stresses.

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Earthquake activity in Bárðarbunga volcano (red dots). Copyright of this image belongs to Iceland Meteorological Office.

Earthquake activity in Tungnafellsjökull volcano

Since the end of the eruption and any major activity in Bárðarbunga volcano. Earthquake activity in Tungafellsjökull volcano has not stopped as expected. The earthquake activity continues at low levels and at great depth. With deepest earthquake in last 48 hours at 26,2 km.

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Earthquake activity in Tungnafellsjökull volcano (yellow / orange dots). Copyright of this image belongs to Iceland Meteorological Office.

It is unclear what is going on in Tungnafellsjökull volcano, it is clear that dyke intrusion is taking place at depth, if and when that might result in a eruption is not clear at this moment. This might lead to an eruption or it might not. It is impossible to know at this moment since Tungnafellsjökull volcano has no recorded or documented history of volcano eruptions in historical times.

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10 Replies to “Deep earthquakes in Bárðarbunga and Tungnafellsjökull volcanoes”

  1. All interesting. Thanks for your view on this Jon 🙂

    I wonder what you or anyone thinks about Hekla at the moment. Apart from the occasional quake over there, I notice some of the GPS showing deflation around (not on) Hekla. What might that suggest?

  2. Something happening on the reykjanes peninsula? A swarm currently taking place.

    1. All over the place around there. Not a sharply located swarm… Interesting…

  3. Actually it’s more on the Reykjanes Ridge plus a few on the peninsula. Interesting.

    2. The ridge & peninsula getting a bad case of the measles! Take it it’s the warning a few days ago in action.

  4. This must be the biggest swarm in the Reykjanes area for quite some time?

    I think the quakes might be more centered around a smaller epicenter, but aren’t manually corrected yet. A few of them will probably be upgraded to >M3, too.

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