A calculation from satellite measurements in 2010 put the average depth at 3,682 metres (12,080 feet). However, at the time only about 10% of Earth's seafloor had been mapped to high resolution, so ...

Positioned at the southern end of the Mariana Trench in the western Pacific Ocean, the Challenger Deep has a maximum depth of nearly 11,000 metres (36,089 feet) below sea level. Yet this is within ...