Ever wondered what a 15 kilometer high pyroclastic cloud looks like? Here is the answer, in its full iPhone cam captured glory. Based on our sources on the ground in Iceland, the "volcanic event is at least as powerful as the Eyjafjallajokull of last year. The eventual effect on air traffic will depend on wind conditions (slow and random at the moment) and actual ash composition which has yet to be determined. Preliminary observation indicates a milder risk for aircraft, but highly uncertain pending further measurements."