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07 Aug 2020


Top Five Largest Oceans of the World
Geography, World Geography

Top Five Largest Oceans of the World 

Oceans are the large water bodies that collectively cover more than 70 per cent of the Earth’s surface. They are vital for the survival of human beings and other forms of life on the planet Earth.

Top Five Largest Oceans of the World

The list of top 5 largest oceans in the world is as follows:

1. Pacific Ocean: It is the largest as well as the deepest ocean on the Earth. It covers more than 30 percent of the Earth and around 50 percent of the Earth’s water surface. Its area is 166,243,550 square kilometres and the average depth is 4028 meters. The challenger deep in the Marina Trench is the deepest point in the Pacific ocean with 10920m of depth. This ocean borders the coastline of around 50 countries and is home to the highest density centers of biodiversity across the globe. It stretches from the North Pole to the South Pole and is located between Asia and Australia; Asia and North America; Australia and South America. Thus, it forms the western coast of the United States. The equator divides the Pacific Ocean into the North Pacific Ocean and the South Pacific Ocean. Additionally, most of the volcanoes are located in the Pacific Ocean Basin and most of the islands are found in the Pacific ocean. The largest island found in this ocean is the island of New Guinea.

2. Atlantic Ocean: It is the world’s second largest ocean, after the Pacific Ocean. It covers more than 20 per cent of the Earth’s surface and 29 per cent of the Earth’s water surface area. The area of the Atlantic is 106,400,000 square kilometres and its average depth is 3340 meters. The deepest point is the Milwaukee Deep in Puerto Rico: 8600 meters. The greatest width of this ocean is between Brazil and Sierra Leone: 2850 km. Atlantic ocean is located between Americas (North America and South America) to its West and Europe and Africa to its East. Like the Pacific Ocean, it lies between Arctic and Antarctica and is divided by the equator into the North Atlantic Ocean and the South Atlantic Ocean. Additionally, the Bermuda triangle, which is believed to be the reason for the disappearances of ships and aeroplanes, is found in the Atlantic ocean. Also, the famous ship Titanic, which was called the unsinkable ship, sank in this ocean.

3. Indian Ocean: It is the third-largest ocean of the world. It is also known as “Ratnakar”, a sanskrit or Hindi word which means “the mine of gems”.  It covers around twenty percent of the total ocean water surface area. The area of the Indian ocean is around 70,500,000 square kilometers and the average depth is 3964 meters. Its deepest point is Java Trench: 7250 meters.  It is bounded by Asia to the North; Australia to the East; Antarctica to the South and Africa to the West. It also includes many water bodies such as the Andaman, Arabian, Flores, and Bay of Bengal. It is believed to be responsible for the monsoonal weather patterns in India.

4. Southern Ocean: The Southern Ocean, which is also known as the Antarctic Ocean or the Austral Ocean, is the fourth-largest ocean in the world. It covers around six percent of the Earth’s surface. The area of the southern ocean is around 20,300,000 square kilometres and the average depth is around 4500 meters. The deepest point is to the south of the South Sandwich Trench and has a depth of around 7000 meters.  The Southern Ocean has been defined recently in 2000. It is located in the Southern hemisphere and surrounds Antarctica. So, it is mostly made of waters around Antarctica, i.e., it emerges from the waters of the South Atlantic Ocean, the South Pacific Ocean and the Indian Ocean. James Cook was the first person who sailed the cold waters of this ocean in the 1770s.

5. Arctic Ocean: The Arctic ocean is the smallest as well as the shallowest of all the five oceans of the world. The area of Arctic ocean is around 14,056,000 square kilometres and the average depth is around 1200 metres. Its deepest point is the litke deep, in the Eurasian basin.  It covers around 3 per cent of the Earth’s surface.   The Arctic ocean is located in the Northern hemisphere in the Arctic circle in such a way that it surrounds the North Pole of the Earth. The Arctic ocean borders many countries that include North America, Eurasia, Russia, Norway, Iceland, Greenland, Canada and the USA. Fridtjof Nansen was the first person to cross the Arctic ocean by boat in 1896.

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