Glad you and Steve resolved the issue and hopefully you both came away from the experience more tolerating.
As for leaving things to the expert in regards to such things...I can not disagree more. I have on my own accord noticed things the experts did not and have witnessed on other occasions including Eyjaf, novices who far and away outperformed Vulcanologist's worldwide.
Data sets from monitoring devices are kept by some countries as intellectual property and viewed as guarded knowledge. I personally see this behaviour not only detrimental to the protection of this world's denizens but indeed very snobbish...lol
Then may I suggest for your icequake evaluations this link
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=table
which provides greater detail regarding the recorded quakes in the area of the volcanos. Depth of quake should help weed out shallow icequakes from deeper, potentially volcanically generated ones.