[Wikipedia] The Mariana Trench is the deepest oceanic trench on Earth, located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,935 ± 6 metres
