Answer:
The Mariana Trench in the western North Pacific is the deepest point in the Pacific and in the world, reaching a depth of 10,911 metres (35,797 ft). The deepest point in the Mariana Trench is known as 'Challenger Deep' which is three hundred and forty kilometres off the coast of Guam. Challenger Deep was named after the HMS Challenger II who discovered the point in 1948.
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