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Show Island's Short Life A submarine volcano may pile np a bank or form a new Island. The standard example Is Graham Island, HO miles southwest of Sicily; a ship passing thereby on June 28, 1831, felt a shock as If she had struck a sandbar, and on July 10 an eruption',had begun which raised a new islartd that was at one time 200 feet high and three miles In circumference; cir-cumference; after the close of the eruption the island was soon swept away by the waves, and it had been worn down to sea level by October in the same year. |