One of the most dangerous ones, Mt Katla is overdue for an eruption.. that vulcano has in history changed the global weather for a long time. It has been closely monitored now for many years. I has about 6 times larger ice cap on top of it than Eyjafjallajökull had. That one we do need to worry about, and it is not that far away from the current activity.
SR22
With our brains we regard time in our time scales days weeks months years to build an icecap of the size you are talking about would take many thousands of years of little or no activity so don't mislead the human mind timescale into thinking next week next month next year?
We are talking PROBABLY!!! of hundreds of years. While these major eruptions could be tomorrow look at the history and eruption time scales and the likelyhood becomes minuscule and not a weekly occurence
Pace