A cloud of smoke and ash is seen over the Grimsvoetn volcano on Iceland on May 21, 2011. The cloud rising up from Grimsvoetn as a result of the eruption was seen first time around 1900 GMT and in less than an hour it had reached an altitude of 11 kilometres (6.8 miles)," according to the Icellandic meterological institute. AFP PHOTO / Sigurlaug Linnet