Benham Plateau
|
Benham Plateau Benham Rise |
|
|---|---|
.svg)
 Benham Plateau
|
|
| Coordinates: 16°30′N 124°45′E / 16.500°N 124.750°ECoordinates: 16°30′N 124°45′E / 16.500°N 124.750°E | |
| Country |
 Philippines
|
The Benham Plateau, also known as the Benham Rise, is a seismically active undersea region and extinct volcanic ridge located in the Philippine Sea approximately 250 km (160 mi) east of the northern coastline of Dinapigue, Isabela.
Under the Philippine Sea lie a number of basins including the West Philippine Sea Basin, inside of which is located the Central Basin Fault (CBF). The Benham Plateau is located in the CBF and its basement probably is a micro-continent. Several scientific surveys have been made on the feature to study its nature and its impact on tectonic subduction, including one about its effects on the 1990 Luzon earthquake. The area is a territory of the Philippines which was claimed, as part of its continental shelf, which was then lodged with the United Nations Commission on the Limits of the Continental Shelf on April 8, 2009 and was approved by the United Nations Convention on the Law of the Sea (UNCLOS) in 2012.
Benham Rise is a submerged extinct volcanic ridge located at 16 degrees 30 minutes N, 124 degrees 45 minutes E off the coast of Luzon, with the size of about 250 km in diameter and rises over 2,000 meters (2 km.) above the sea floor, from below 5,000 meters (5 km.) below sea level to above 3,000 meters (3 km.) below sea level. Its area is close to the Benham Seamount, located at 15 degrees 48 minutes N, 124 degrees 15 minutes E. The precise location is somewhere near the east of the Philippine Trench and near the south of the East Luzon Trench, both of which absorb the subducting force of the Philippine Sea Plate under the Philippine Mobile Belt, a collage of large blocks of that crust that amalgamated prior to the collision of the Philippine Sea Plate with the Eurasian Plate.
...
Wikipedia