The Icelandic Met Office has lowered the aviation color code over Bárðarbunga volcano to orange from red.
The status of the Askja caldera, to the northeast of Bárðarbunga, is yellow, which indicates that the volcano is exhibiting signs of elevated unrest above known background level.
Color codes, which are in accordance with recommended International Civil Aviation Organisation (ICAO) procedures, are intended to inform the aviation sector about a volcano’s status.
The Icelandic Transport Authority has also reduced the restricted area around the volcano from 18 km (11 miles) to 5.5 km (3.4 miles). The aviation danger area above the eruption site in Holuhraun lava field continues to reach 5,000 feet covering part of the highlands north of Vatnajökull glacier, ruv.is reports.
The fissure eruption which started in Holuhraun, north of Dyngjujökull glacier, this morning, can more or less be described as an accident, according to geophysicist Magnús Tumi Guðmundsson, who spoke with RÚV in a special news broadcast at 10 am this morning.
“The magma fills the gaps and it is not until the gaps have been filled that it comes up to the surface in large quantities. It is not possible to say whether this will happen in the next few days or weeks or whether it will stop now and then come back up again later,” he said.