Tuscarora Deep

The Tuscarora Deep is a feature within the Japan Trench, located in the western North Pacific Ocean, east of the Japanese islands. This trench is part of a chain of depressions that extend south from the Kuril Trench and Bonin Trench to the Mariana Trench. The Tuscarora Deep itself reaches a depth of 27,929 feet (8,513 meters) and was once thought to be the deepest point on Earth, though it is now known that the Mariana Trench holds that distinction. The Mariana Trench is the deepest known trench on Earth and is part of a system of oceanic trenches in the western Pacific that align with subduction zones.12