Earth’s inner fires surface at Beppu, a city of mineral springs on Kyushu. Geologists believe the ba
Earth’s inner fires surface at Beppu, a city of mineral springs on Kyushu. Geologists believe the basin that forms the Inland Sea was creating by faulting, which split a single landmass into the islands of Honshu, Kyushu, and Shikoku. Japan, December 1977 -- source link