How deep is the Mariana Trench?

An illustration of the Mariana Trench, the deepest point on Earth. (Image credit: DOERS)

The deepest depths of the sea are in the shape of a crescent moon Mariana Trench, located in the western Pacific Ocean. But what is the deepest point of the Mariana Trench?

The Mariana Trench is about 1,580 miles (2,550 kilometers) long and lies east of the Mariana Islands, which give the trench its name, according to the University of Washington (opens in new tab). The deepest point in the Mariana Trench is a valley called the Challenger Deep, located at the southern end of the Mariana Trench, according to the National Oceanic and Atmospheric Administration (opens in new tab) (NOAA).

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