Bárðarbunga volcano weekly update on 18-February-2015

There has not been major change in Holuhraun eruption since last week. The eruption continues at low phase at the moment far as I know. Bad weather has prevented scientists monitoring the eruption in the past few days. There continues to be considerable activity in Bárðarbunga volcano, the volcano continues to deflate.

150218_1440
Earthquake activity in Bárðarbunga volcano for the past 48 hours. Green star is a magnitude 4,1 earthquake that took place at 14:18 UTC on 18-February-2015. Copyright of this image belongs to Icelandic Met Office.

New vents might open up along the dyke once current vent closes up in Holuhraun. There seems to be several weak points forming along the dyke, based on current earthquake activity (cluster of earthquake activity). There is also a risk this might happen before the eruption in Holuhraun ends. If the pressure inside the dyke is enough to start an eruption in new location before that.

The long term view of Bárðarbunga volcano

When the eruption in Holuhraun ends it is not going to mean the end of activity in Bárðarbunga volcano. Current activity is just a start of activity that is going to last for several years. According to Ármann Höskuldsson volcanologist in a interview at Rúv News yesterday. While it is not known for how long the rift episode that has now started in Bárðarbunga volcano is going to last. It is clear that this is at minimum of 5 years, common time for rift zone activity is up to ten years. There is a chance it is going to last longer than that. When it comes to Bárðarbunga volcano how long such activity is not known. There are also going to be breaks, with no activity at all between eruptions. Activity in Bárðarbunga volcano won’t be declared over until it is once again stable. Eruption activity in Bárðarbunga volcano might not end until the year 2026 at the longest.

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This entry was posted in Bárðarbunga, Caldera, Deflation, Dyke intrusions, Earthquakes, Eruptions, Fissures, Gas, GPS data, GPS Monitoring, Harmonic tremors, Inflation, Lava, Magma, Monitoring, SO2, Swarm, Toxic, Volcano. Bookmark the permalink.

176 Responses to Bárðarbunga volcano weekly update on 18-February-2015

  1. Scots John says:

    Some very interesting data coming in from Hekla and burfell strain gauges
    http://hraun.vedur.is/ja/strain/1sec/index.html

    • Luisport says:

      Can you explain a bit please?

      • Scots John says:

        The gauges were deployed with the primary function of monitoring strain in Hekla, but they also have responded to large eqs in bb, showing either a seismically or hydraulically transmitted bar in the graph.

        I always watch these, probably as I’m a Hekla but, but also because I see responses or rises when other instrumentation is showing little. Burfell is the closest to Hekla and is showing waves/pulses similar to those that it showed on 2012 when many were watching it.

        These explains their purpose –
        http://hraun.vedur.is/ja/jsr_2009/abstracts/pdf/matthew_roberts.pdf

        It doesn’t mean an eruption is imminent so please don’t quote me on GLP Luis 🙂

  2. Please note that there is going to be insane weather in Iceland tomorrow. Please see details here.

    http://en.vedur.is/about-imo/news/nr/3090

  3. New article on Bárðarbunga volcano is up. 🙂

  4. Mafl says:

    While the wether is bad in Iceland and BB makes a pause, a little music 🙂 :
    Seismograph

    …and now all:
    “Here come the P-waves
    Here come the S-waves
    Here come the surface waves “

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