The Mariana Trench, located in the western Pacific Ocean, is the deepest zone in the ocean. It reaches a depth of about 36,070 feet (10,994 meters) at its lowest point, known as the Challenger Deep.
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The deepest earthquakes occur at subduction zones where one tectonic plate is forced beneath another into the Earth's mantle. These earthquakes can occur as deep as 700 km below the surface.
The layer that contains the highest mountains and deepest oceans is the Earth's lithosphere. The lithosphere is the outermost layer of the Earth's surface, which includes the Earth's crust and the upper part of the mantle. The highest mountains, such as the Himalayas, are formed by tectonic plate collisions, while the deepest oceans, such as the Mariana Trench, are located in the Earth's crust.
Subduction zones have the deepest earthquakes.
The Earth's outermost layer, the lithosphere, contains the highest mountains such as Mount Everest. The deepest parts of the ocean, including the Mariana Trench, are found in the Earth's oceanic crust, which is part of the lithosphere that lies beneath the oceans.
The deepest spot in the ocean is the Mariana Trench, located in the western Pacific Ocean. The Challenger Deep within the trench is the deepest part, reaching a depth of about 36,000 feet (10,972 meters).