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Greece
View of the 400 m (1300 ft)-deep volcanic caldera off the coast of Santorini/Thera Island. In the foreground is the island of Nea Kameni. In the background is the island of Therasia. Santorini, Nea Kameni, and Therasia were separated by a volcanic eruption termed the Minoan Eruption in about 1630 B.C.