Wanna Know Which is the Deepest Ocean in the World? Find Out Here

Deepest Ocean in the World
The depths of the five oceans vary significantly from one another. So, which is the deepest ocean in the world? Despite the tremendous advancements in science and technology, it is a fact that most parts of the ocean remain unexplored till date. The inhospitable conditions create challenges for humans to reach the deeper regions. Researches are ongoing to find more about the deepest part of the ocean and also, other inaccessible ocean regions.
ScienceStruck Staff
Last Updated: Jan 25, 2018
• Deepest Ocean (By Average Depth): Pacific Ocean 4,028 to 4,200 meters (13,215 to 14,000 ft)

• Deepest Part: Mariana Trench (10.9 to 11 km)

• Deepest Point: Challenger Deep ( ~10.91 km)
The five oceans of the world viz the Atlantic ocean, Arctic ocean, Indian ocean, Pacific ocean, and Southern ocean are characterized by a specific location, depth, and size. Pacific Ocean is the largest and deepest ocean in the world. It covers a surface area of 65.3 million square miles or 169.2 million in square kilometers spreading from the Arctic ocean to the Southern ocean.
* Southern Ocean, although having a depth varying from 4,000 to 5,000 meters is not considered as the deepest ocean, since technically, its categorization as an independent ocean is questioned by many scientists all over the world.
Mariana Trench Location
According to geographical data, about 46% of the earth's water surface is contributed by Pacific ocean. In other words, it accounts to 30 percent of the earth's surface. An interesting pacific ocean fact is its volume, which is believed to be 622 million cubic kilometers. The Pacific ocean is divided into two parts (the north Pacific and south pacific) by the equator that passes through it.
Various oceanography reports suggest the depth of Pacific Ocean to be 13,215 feet. The main reason for such a great depth is subduction of one oceanic plate under the other. As the two converging oceanic plates collided with each other, one of them moved downward, towards the mantle layer. This collision point lead to the formation of a trough, called the Mariana Trench.
The Challenger Deep in the Mariana trench, the world's deepest oceanic part was explored by two hydronauts Don Walsh and Jacques Piccard as early as January 1960, by using a bathyscaphe named Trieste. Later in 2009, research of the Woods Hole Oceanographic Institution used Nereus robotic vehicle to reach a depth of 10,902 meters in the Challenger Deep region.
Average Depth of Oceans
Pacific Ocean
pacific ocean
Pacific Ocean: 4,028 to 4,200 m
Atlantic Ocean
Atlantic Ocean
Atlantic Ocean: 3,300 to 3,600 m
Southern Ocean
Southern Ocean
Southern Ocean*: 4,000 to 5,000 m
Indian Ocean
serene ocean
Indian Ocean: 3,700 to 3,900 m
Arctic Ocean
North
Arctic Ocean: 1,000 to 1,300 m
Every water body has a deepest part, as compared to other regions. The same is applicable to the five oceans of the world. Apart from the Mariana Trench, here is a list of the five oceans along with their deepest part.

Deepest Part of Different Oceans

• Pacific Ocean: 35,797 feet (Mariana Trench)
• Atlantic Ocean: 28,374 feet (Puerto Rico Trench)
• Southern Ocean*: 23,736 feet (South Sandwich Trench)
• Indian Ocean: 23,376 feet (Java Trench)
• Arctic Ocean: 17,881 feet (Eurasia Basin)
Oceans and seas make up the marine biome along with the estuaries, reefs, gulfs, and bays. Out of these, oceans are the largest ecosystems on earth, covering an area of about 335,258,000 sq km. Exploring the deepest part of the ocean is quite a challenging task for the scientists.
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