Picture shows clouds over a 1-km-long fissure in a lava field north of the Vatnajokull glacier, which covers part of Bardarbunga volcano system

Picture shows clouds over a 1-km-long fissure in a lava field north of the Vatnajokull glacier, which covers part of Bardarbunga volcano system

Picture shows clouds over a 1-km-long fissure in a lava field north of the Vatnajokull glacier, which covers part of Bardarbunga volcano system, August 29, 2014. The eruption is at the tip of a magma dyke around 40 km from the main Bardarbunga crater and activity subsided to relatively low levels after peaking between 0020 and 0200 GMT, Iceland Met Office seismologist Martin Hensch said. Iceland’s Meteorological Office on Friday downgraded its volcano alert level to orange from red and said a small eruption that started during the night is not a threat to aviation. REUTERS/Marco Nescher (ICELAND – Tags: ENVIRONMENT TPX IMAGES OF THE DAY)