Aviation Industry Eying Potential Iceland Volcano

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The aviation industry has been warned about the possibility of flight disruptions caused by activity at Iceland's largest volcano system. Intense seismic tremors have been recorded at Iceland's Bardarbunga volcano for the past several days, although there are no signs yet of an eruption. Iceland's Met Office has raised the risk level to the aviation industry to orange -- the fourth level on a five-level scale. Police and the country's civil protection service have also closed roads and started an evacuation of highland areas north of the volcano as a precaution.

The Met Office said in a statement that the strongest earthquake in the region since 1996 was recorded early on Monday. It said: "As evidence of magma movement shallower than 10 km (6.2 miles) implies increased potential of a volcanic eruption, the Bardarbunga aviation color code has been changed to orange. Presently there are no signs of eruption, but it cannot be excluded that the current activity will result in an explosive sub-glacial eruption, leading to an outburst flood and ash emission. The situation is monitored closely." In 2010 an ash cloud caused by the eruption of Iceland's Eyjafjallajokull volcano shut down much of Europe's airspace for six days. More than 10 million people were affected by the event. Bardarbunga is Iceland's largest volcanic system. It is located under the ice cap of the Vatnajokull glacier, in the country's southwest.