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Iceland Volcano Bardarbunga: 1,000 earthquakes detected near volcano, adding to fears of a potential explosion

An intense earthquake swarm continues to rattle Iceland’s Bardarbunga volcano, adding to fears that a potential eruption could disrupt the region’s air traffic. Weather officials say they detected about 1,000 small quakes through Tuesday night, which were triggered by an unusually strong earthquake on Monday. The tremors are tied to the increasing movement of magma underground.