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April 14 - Iceland volcano eruption

Volcanic EruptionsEyjafjallajokull Volcano Eruption (2010)
On April 14, Icelandic volcano Eyjafjallajökull erupted for a second time, causing a massive plume of smoke and ash. In just one week the cloud had forced the cancellation of 95,000 flights over Europe. Photo by Heidar Kristjansson/AFP/Getty Images