There are about 50,000 km (31,000 mi) of oceanic trenches worldwide, mostly around the Pacific Ocean, but also in the eastern Indian Ocean and a few other locations. The greatest ocean depth measured is in the Challenger Deep of the Mariana Trench, at a depth of 10,994 m (36,070 ft) below sea level.

Deep-sea trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths, approximately 7,300 to more than 11,000 metres (24,000 to 36,000 feet). They typically form in locations where one tectonic plate subducts under another.

The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width.

2017年4月25日 · With a depth of 36,201 feet, the Challenger Deep of the Mariana Trench is the deepest known oceanic trench in the world and is located in the Pacific Ocean.

2023年11月29日 · What Is the Mariana Trench? The Mariana Trench is the deepest part of the world's oceans, located in the western Pacific Ocean. The weight of the ocean above it creates pressure around 15,750 pounds per square inch (more than 1,000 times what we experience on land) and the alien world is devoid of light. Where Is the Mariana Trench?

2024年12月12日 · Mariana Trench (Marianas Trench), deepest of the world’s deep-sea trenches. It stretches for more than 1,580 miles (2,540 km) with a mean width of 43 miles (69 km) and is part of the western Pacific system of oceanic trenches coinciding with subduction zones.

2023年11月14日 · The Mariana Trench is the deepest ocean trench on Earth, with a maximum depth of 36,200 feet. The deepest point is known as the Challenger Deep. Located in the western Pacific Ocean, the Mariana Trench occurs 124 miles east of the Mariana Islands.

What is the Mariana Trench? The Mariana Trench is the deepest oceanic trench on Earth. It is one of the most incredible places on Earth; check out these astounding facts about this world wonder: Maximum Depth: 7 miles or 36,200 feet; Location: Floor of the Pacific Ocean, between Hawaii and the Philippines; Length: 1,500 miles long