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Submerged stone structures lying just below the waters off Yonaguni Jima are actually the ruins of a Japanese Atlantis—an ancient city sunk by an earthquake about 2,000 years ago.
That's the belief of Masaaki Kimura, a marine geologist at the University of the Ryukyus in Japan who has been diving at the site to measure and map its formations for more than 15 years.
Each time he returns to the dive boat, Kimura said, he is more convinced than ever that below him rest the remains of a 5,000-year-old city.
Originally posted by Essan
which may have been altered by humans known to have been living in the area at the time
Originally posted by TheoOne
Japan's Ancient Underwater "Pyramid" Mystifies Scholars