An intriguing and “demonstrated” theory, locates Atlantis in the Eastern Mediterranean, in the archipelago of Cyclades, in an area occupied today by the island of Santorini.
As everybody knows the existing island of Santorini is the remains of a bigger island destroyed by an explosive volcanic eruption: it’s known that the ancient Volcano of Thera erupted about 18 cubic Km of magma and the explosion left nothing but a big blackened rock. Only in the 70s the radiocarbon dating method determined the age of a throne found buried under the ash: the eruption should have happened in the 1456 BC. ( source )