Deepest point in Earth’s oceans
Last updated: May 14, 2019 at 4:11 am
10,994 m (36,070 ft) — The Challenger Deep, located in the Mariana Trench, 250 miles (400 km) southwest of Guam in the Pacific Ocean, is the deepest known point on the planet. It is named after the British survey ship Challenger II, which first surveyed the trench in 1951. The first humans to descend to Challenger Deep were Dr. Jacques Piccard and Dr. Don Walsh aboard the bathyscaphe Trieste (10,911 m / 35,797 ft) in 1960. James Cameron made the first solo descent to the Challenger Deep in 2012.
Depth surveyed by the United States Center for Coastal & Ocean Mapping in 2010 (± 40 m / 130 ft)
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.