The lowest place on Earth is the Challenger Deep in the Mariana Trench of the Pacific Ocean. The nation which lays claim to the nearest island is the United States. Specifically, the deepest point is closest to the territory of Guam, which is located in the western Pacific Ocean near the Mariana Trench.
Challenger Deep: 36,070 feet (6.8 miles) below sea level
That distance is greater than the highest point on Earth!
Mount Everest: 29,032 feet above sea level
That point is in Tibet, which China claims.
Reference:
geologypage.com
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