Mondo Knows Facts
The Challenger Deep is the deepest known point in the ocean
It lies nearly 11 kilometres down at the southern end of the Mariana Trench
Located in the western Pacific Ocean, the Challenger Deep reaches a depth of about 10,994 metres below sea level. Water pressure at the bottom exceeds 1,000 atmospheres, which is roughly one thousand times atmospheric pressure at sea level. Only a small number of submersibles have ever reached the trench floor.
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Tags: ocean, depth, mariana trench
The Challenger Deep is the deepest known point in the ocean: the short answers
- Where does this come from, and can I check it?
- It lies nearly 11 kilometres down at the southern end of the Mariana Trench. The figure is taken from NOAA, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a records & extremes fact?
- Yes. It sits on the Records & Extremes shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.