Few recent events which disrupted global tourism and especially tourism mobility, match the impact of the volcanic ash clouds generated from the eruption of the Icelandic volcano Eyjafjallajokull in 2010 and the Chilean volcano Puyehue in 2011. At the spacial dimension (geographic scale) and numeric dimension (impact on millions of tourists) the ash cloud events ranked with the 9/11 attacks of 2001 as the most disruptive events in recent global tourism history.