Iceland volcano triggers air traffic ban

Meteorological Office issues red alert as small subglacial eruption is detected at Bardarbunga volcano.

    The red alert indicates an eruption that could cause 'significant emission of ash into the atmosphere' [Reuters]
    The red alert indicates an eruption that could cause 'significant emission of ash into the atmosphere' [Reuters]

    Air traffic has been banned over Iceland as the Meteorological Office raised the alert over the country's largest volcano to red.

    The office said small eruption under the glacial surface was detected on Saturday at the Bardarbunga volcano, which has been rattled by thousands of earthquakes over the past week.

    The volcanic activity has triggered fears of a replay of the global travel chaos caused by the eruption of a smaller volcano in 2010, when more than eight million travellers were stranded in the biggest airspace shut down since World War II.

    Vulcanologist Melissa Pfeffer said seismic data indicates that lava from the volcano is melting ice beneath the Vatnajokull glacier. She said it was not clear when, or if, the eruption would melt the ice and send steam and ash into the air, the Associated Press reported.

    The red alert - the highest warning on a five-point scale indicates an eruption that could cause "significant emission of ash into the atmosphere".

    Authorities evacuated several hundred people earlier this week from the highlands north of the Vatnajokull glacier as a precaution. The area is uninhabited but popular with hikers.

    Iceland sits on a volcanic hot spot in the Atlantic's mid-oceanic ridge and eruptions have occurred frequently, triggered when the Earth's plates move and when magma from deep underground pushes its way to the surface.

    The 2010 eruption of the Eyjafjallajokul volcano produced an ash cloud that caused a week of international aviation chaos, with more than 100,000 flights cancelled. Aviation regulators since have reformed policies about flying through ash, so a new eruption would be unlikely to cause that much disruption.

    Pfeffer said the amount of ash produced would depend on the thickness of the ice.

    "The thicker the ice, the more water there is, the more explosive it will be and the more ash-rich the eruption will be," she said.

    SOURCE: Agencies


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