Medieval Ruins Found in Japanese Waters

The Asahi Shimbun: Archeologists are studying the ruins of a submerged city, off the coast of central Japan, which may have sunk into the sea in the middle of the 13th century. A series of man-made stone structures covers an area of Sagami Bay between 100 yards and a half-mile from the coast of Atami, in Shizuoka Prefecture. The structures, about 50 to 150 feet below sea level, "were not created naturally," according to Torao Mozai, professor emeritus of Tokyo University of Marine Science and Technology.

Although it has not been definitively identified as such, the ruins may relate to a Kamakura-era record describing land sinking in the region of the Izu islands and southeastern Shizuoka Prefecture.