Current status on Bárðarbunga volcano at 20:36 UTC
Largest earthquakes in Bárðarbunga yesterday (17-September-2014) was a magnitude 5,2. Largest earthquake today (18-September-2014) was a magnitude 5,3. Other earthquakes have been smaller.
Bárðarbunga volcano caldera continues to drop. When the magnitude 5,3 earthquake happened today at 14:21 UTC the caldera dropped 20 – 30 cm.Harmonic tremor data
I can see two things in the harmonic tremor data. The pressure is increasing in Bárðarbunga volcano system. I am also seeing pulses of harmonic tremor and that is not good. It means that magma has somewhere found a path to the surface, it just isn’t there yet, but it is working way up. It is impossible to know if this magma gets all the way up or not. Small eruptions are also not impossible, since there signature might simply be lost in the noise on the tremor plots that I am using from Icelandic Met Office
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We are waiting for the explosion........