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The Bardarbunga volcano system has been rocked by hundreds of tremors daily since mid-August, prompting fears the volcano could explode. In the photo released today, but shot on Sunday, Bardarbunga spews lava and smoke in southeast Iceland.

Bardarbunga, at 6,500 feet, is Iceland's second-highest peak and is located under Europe's largest glacier, Vatnajoekull.

An aerial picture taken on Sept. 14, shows lava flowing out of the Bardarbunga volcano in southeast Iceland.BERNARD MERIC / AFP - Getty Images