Lava fountains danced along a lengthy volcanic fissure near Iceland's subglacial Bardarbunga volcano Sunday, prompting authorities to raise the aviation warning code to the highest level and close the surrounding airspace. The red warning code — the highest in the country's alert system — was raised early Sunday after the eruption in the Holuhraun lava field, about five kilometers (three miles) north of the Dyngjujoekull glacier. The warning was lowered 12 hours later as visibility improved and it was clear that no volcanic ash was detected.
Sunday morning's eruption at about 0500 GMT (1 a.m. EDT) followed a smaller one in the same site on Friday that also prompted authorities to briefly raise the aviation warning code to restrict flights in the area. Thousands of small earthquakes have rocked the region in recent days, leading to concerns that the main volcano may erupt.
The aviation warning meant that no flights were allowed in the airspace north of the fissure eruption area, up to 6,000 feet (1.1 miles) from the ground. Aviation officials said the restrictions do not affect commercial flights, which fly much higher than that. Although Sunday's fissure eruption was more powerful than the one on Friday, experts say the situation is contained and is unlikely to result in the same level of aviation chaos as 2010.
- The Associated Press