Myths of which country is the island of Sukunen Kirishima?

Japanese Creation Myth

Izanagi and Izanagi Ranzun had been living in Takatenkyo since their birth, but Takatenkyo was so quiet and transcendent that they were often bored. One day, Izanagar and Izanagar Ranzun wandered to the sky bridge. The sky bridge lies between the sky and the sea, above is the tiny heaven, below is the vast ocean. Walking, the two gods had a sudden thought, said: "Why don't we create a piece of our own paradise in this rough sea?" Said to do, Izanagano Zun and Izanagano Ran Zun together hold a jade encrusted spear, concerted efforts to the sea Zha, Zha to the end and then violently upward. When it is too late, I saw a huge column of water rose up to the sky, and then miraculously pouring downward, seawater in the sediment slowly cohesion, accumulation. In an instant, an island stood up in the boundless sea, which was the island of Silt Energy Chess Lu. Zun Izanami and Zun Izanami Ranjun jumped from the Sky Pontoon Bridge to the island of Sonnenkiru and excitedly surveyed everything in front of them. To commemorate this sacred creation, they erected a cylindrical boulder on the island, which they named "Ten no Mikoto".