What Is the Deepest Ocean in the World?

The second-deepest ocean is the Atlantic Ocean with an average depth of 12,254 feet. The deepest point of this ocean is the Puerto Rico Trench at 28,374 feet. The third-deepest ocean is the Indian Ocean with an average depth of 12,740. Its deepest point is the Java Trench at 25,344 feet. The Arctic Ocean is the fourth-deepest ocean. Its average depth is 3,407 feet and deepest point is the Eurasia Basin at 17,881 feet.