The Arito Sea (Japanese: 有戸海 Arito umi, Kapuran: ╙┴╓┌┬╚ ┤ Arito wuna) is a marginal sea of the North Pacific Ocean, situated between El Kadsre, Mahri, Sentan, Narternee, Trayu, Raland, San Enrique, Kokone, Kowokam, Bellich and Gauboran. It was formed 76 million years ago, when the earthquake caused the land bridge to split into two, triggering the megatsunami that flooded over 770 thousand square kilometers of land.