The Godzilla Megamullion (Japanese: ゴジラ・メガムリオン, romanized: Gojira megamurion) is an undersea Japanese megamullion, or oceanic core complex, 600 kilometres (370 mi) south-east of the island of Okinotorishima in the Philippine Sea. It is about 125 km (78 mi) long by 55 km (34 mi) wide, and is the largest known oceanic core complex in the world. Due to its size it is named after the fictional monster Godzilla, and 14 individual topographic features have been named after Godzilla's body parts.