March 23, 2013 at 19:47
And I was going to post the following: “It seems Hekla is having an earthquake about every 3 days. Since last earthquake it is about time to see another earthquake, probably happening tomorrow”
And the earthquake just happened!
I think there are major changes precursor to an eruption in Hekla. I think there is a high change of Hekla erupting within the next days. Now I am even more confident that it might erupt.
So today we had a 1.4 deep earthquake, following a major strain event at Hekla.
The sequence of events should be this:
- earthquakes like this one, a few of them, starting about 1-2 hours before the eruption
- then, a major strain event
- then, larger earthquakes and tremor starts (this is 20min before the eruption)
- after that, the eruption starts with a major explosion and a ash cloud following it
- the ash column last 1 to a few days and then large lava fountains follow for several days to weeks
[link to volcanocafe.wordpress.com