Something is happening at Grímsfjall volcano. The SIL seismomter on Grímsfjall volcano is shows a sharp increase in harmonic tremors in Grímsfjall volcano. It also appears that earthquake activity in increasing in Grímsfjall volcano.
I do believe (based on the data so far) that a eruption is about to start in Grímsfjall volcano. I am going to post more updates on this when I know more. But please note that I might be wrong. But this is what the data suggests so far.
Have you a link to the seismometer?
Here it is,
http://hraun.vedur.is/ja/oroi/grf.gif
This can also be seen on other nearby SIL stations around Vatnajökull glacier.
How can you tell if they’re harmonic from that display? With all the ups and downs and spikes I find it hard to see a pattern over such a short time.
They are higher then the background noise.
A new blog post is up about this.
Good call.