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菲律宾海位于西太平洋大陆边缘,它的周边被岛弧和深海沟所环绕,海域内有数条近南北向的构造脊。近南北向和近东西向的构造将菲律宾海海底地势分割成不同的部分,构成明显不同的地势特征:(1)深海沟呈链状环绕着海域周边分布。(2)近南北向的九州 帛琉海岭将海底分成东西两半,东半部主要是岛弧区,西半部主要是海盆区。(3)海脊与岛弧呈近南北向伸展并贯穿全区,海脊与岛弧之间为海盆。海盆底多为丘状起伏,并有轻度切割。(4)海岭、海台呈块状分布在海盆之上,长垣分布在菲律宾海沟的东侧。(5)岛弧周围分布有岛架和岛坡地势。菲律宾海的地势特征和它的构造特征相一致。
The Philippine Sea is located on the edge of the western Pacific continent, its periphery is surrounded by island arcs and deep trenches, with several near-north-south structural ridges in the sea. Near-North-South and near-to-east tectonics divide the submarine topography of the Philippine Sea into distinct parts that form distinctly different topographical features: (1) Deep trenches are chained around the periphery of the sea. (2) Near the north-south Kyushu Palau Ridge, the seabed is divided into east and west halves, the east half is mainly the island arc zone, and the west half is mainly the sea basin. (3) Ridges and island arcs extend nearly north-south and run through the whole area, and sea spits and island arcs are sea-basins. Sea basin mostly mound undulate, and mild cutting. (4) Ridge, Haitai block-like distribution above the basin, long wall located in the eastern part of the Philippine trench. (5) There is island island and island slope around island arc. The topography of the Philippine Sea is consistent with its tectonic features.