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The Philippine Sea plate or the Philippine plate is a tectonic plate comprising oceanic lithosphere that lies beneath the Philippine Sea, to the east of the Philippines.Most segments of the Philippines, including northern Luzon, are part of the Philippine Mobile Belt, which is geologically and tectonically separate from the Philippine Sea plate.
The Philippine Trench results from the westward subduction of The Philippine Sea plate beneath the Philippine Mobile Belt. The north-trending trench extends from the southeastern Luzon (15˚30’N) to the northeast of Halmahera (2˚N), with a total length of 1,800 km (1,100 mi) [ 19 ] [ 16 ] and a maximum depth of 10,540 metres (6.55 miles). [ 27 ]
The Philippine Sea Plate forms the floor of the sea. [2] Its western border is the first island chain to the west, comprising the Ryukyu Islands in the northwest and Taiwan in the west. Its southwestern border comprises the Philippine islands of Luzon , Catanduanes , Samar , Leyte , and Mindanao .
The Philippine Fault Zone (PFZ) extends 1200 km across the Philippine archipelago behind the convergent boundary of the Philippine Trench and the subduction of the Philippine Sea plate. [3] This left-lateral strike-slip fault extends NW-SE (N30 – 40 W) accommodating the lateral oblique motion of the subducting Philippine Sea plate with ...
Major physiographic elements of the Philippine Mobile Belt Puerto Princesa Subterranean River National Park marker describing the geologic history of the Philippines. In the geology of the Philippines, the Philippine Mobile Belt is a complex portion of the tectonic boundary between the Eurasian plate and the Philippine Sea plate, comprising most of the country of the Philippines.
[2] [3] [4] It is located along a section of the convergent plate boundary where the Philippine Sea Plate is subducting northwestward beneath the Eurasian Plate along the Ryukyu Trench. [3] [4] [5] The arc has an overall northeast to southwest trend and is located northwest of the Pacific Ocean and southeast of the East China Sea. [6]
The Bicol Volcanic Arc is formed by the subduction of the Philippine Sea Plate beneath the Luzon Island Arc. As the Philippine Sea Plate descends beneath Luzon, it melts and releases fluids that rise through the overlying crust. These fluids, which are rich in silica, aluminum, and other minerals, eventually cool and solidify, forming the ...
The earthquake occurred as a result of shallow oblique-thrust faulting likely along the subduction interface of the Philippine Trench. At this location, the Philippine Sea plate moves west-northwest at a rate of about 103 mm (4.1 in) per year with respect to the Sunda plate. A finite fault model suggests rupture occurred around an elliptical ...