An Icelandic volcano which caused havoc to European aviation after erupting last month is to emit a large new ash cloud after surging back to life, meteorologists said Thursday. A plume of ash measuring up to seven kilometers (more than four miles) high had been detected at the Eyjafjoll volcano, said a statement from the Icelandic Met Office and Institute of Earth Science. ‘The eruption has changed back to an explosive eruption, lava has stopped flowing and most of the magma gets scattered due to explosions in the crater,’ said the statement in English. ‘The ash plume rises high above the crater (4-7 km) and considerable ash fall can be expected in wind direction. No signs of the eruption ending soon.’