Keflavík airport in Iceland has been closed due to the eruption of Grímsvötn volcano. Ashfall surrounding the volcano has already reached a thickness of half a centimetre. This is the largest eruption at Grímsvotn volcano in 100 years and larger than the one in Eyjafjallajökull last year. It is similar to the eruption of 1873 at Grímsvotn. A large glacial flood (Jokulhlaup) is not expected. This morning ash emissions reached a height of 15 to 18 kilometres, which is ten times more powerful than the last eruption in Grímsvötn in 2004.
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