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Last night (26-December-2015) two magnitude 3,3 earthquakes took place in Bárðarbunga volcano. This earthquake activity was followed by a change in activity on 2 – 4Hz band, I’m not sure why that is, it might signal a inflow of magma at depth into shallow parts of the crust. This is however only guess on my part, this change in signal and it’s origin.
It is my view that the risk of eruption in Bárðarbunga volcano is increasing fast and Bárðarbunga volcano might erupt without warning at any time. Iceland Met Office holds a different view and that is there is no major risk of eruption in Bárðarbunga volcano at the moment, even if magma continues to flow into Bárðarbunga volcano.
The magnitude 3,3 earthquake in north-east part of Bárðarbunga volcano caldera had the depth of 0,1 km. The magnitude 3,3 earthquake in south-east part of the caldera had the depth of 2,5 km. At 08:20 UTC this morning a magnitude 1,0 took place in Bárðarbunga volcano, that earthquake had the dept of 20,3 km and that suggest the magma inflow might be more than current ideas and models suggest (this earthquake is on the edge of the volcano, not far from Tungnafellsjökull volcano). I don’t know what is going to happen next in Bárðarbunga volcano. Since nobody knows for sure what is going to happen next in Bárðarbunga volcano.
The earthquake activity in Bárðarbunga volcano has now created a half-circle of earthquakes in the caldera. Over the past 24 hours there has been slight increase in activity in Bárðarbunga volcano after the magnitude 3,3 earthquakes. There has also been some odd harmonic tremor spikes around Bárðarbunga volcano, the problem is that at the moment there is bad weather taking place at this location in Vatnajökull glacier area. So this might just be wind. I have to wait until the weather gets better in order to see if anything changes.
I don’t know if any more activity is going to take place. This might die down, it is difficult to be sure about what happens next.
Article updated on 27-December-2015 at 17:56 UTC.