Scientists in Iceland are warning that another volcano on the island looks set to erupt, threatening to spew-out a blanket of dust that would dwarf last year's eruption.
Geologists detected the high risk of a new eruption after noticing an increased swarm of earthquakes around the island's second largest volcano Bárdarbunga.
Pall Einarsson, a professor of geophysics at the University of Iceland, says the area around Bárdarbunga is showing signs of increased activity, which provides 'good reason to worry'.
Last year's eruption of volcanos near Eyjafjallajokull, located in the south of the island, caused chaos around the world as hundreds of planes were grounding due to dust and ash filling the sky.
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