Ocean Kitna Gehra hai? | How Deep Is The Ocean?

Ocean Kitna Gehra hai? | How Deep Is The Ocean?




The oceans and seas surrounding the continents offer several wonders, many of which humans have yet to discover.

The vast bodies of water that cover over 70% of the planet’s surface, holding around 1.35 billion cubic kilometres of water, have plateaus, valleys, plains, mountains, and trenches.

And interestingly, the underwater formations are enormous compared to those on dry land.

The mountains in the ocean basin are higher than those we see on land; similarly, the plains are flatter, so the ocean trenches are much more profound.

Of all the features that oceans offer, the very depth of these water bodies makes them so enchanting.

Indeed, the ocean is deep, and the average depth of the oceans and seas surrounding the continents is around 3.5km.

The part of the ocean that is deeper than just 200 meters is considered the “deep sea.” However, some parts of the oceans go up to several kilometres. But what is the deepest part of the ocean exactly?


Scientifically speaking, the deepest part of the ocean refers to the maximum depth of a point that can be accessed or defined. Every deep part of the ocean is called a deep trench.

They are known as the hadal zone, and the deepest sea trenches are created by shifting tectonic plates.

Currently, there are 46 hadal habitats across the oceans, and humans know very little about these regions since it’s challenging to study these parts of the oceans. Here is a list of ten points that mark the deepest points of oceans.


Currently, there are 46 hadal habitats across the oceans, and humans know very little about these regions since it’s challenging to study these parts of the oceans. Here is a list of ten points that mark the deepest points of oceans.


1. Mariana Trench
The Marina Trench is the deepest part of the Earth’s surface in the western Pacific Ocean. It contains the Earth’s deepest point, called the Challenger Deep. While many have reached Mount Everest, just 27 people have descended the Challenger Deep.

Jacques Piccard and Don Walsh reached a 10,916 m depth in their Trieste bathyscaphe in 1960. The first unmanned vehicle to reach the Deep was controlled by the Woods Hole Oceanographic Institution’s researchers, reaching up to 10,902 meters.

Appearing as a crescent-shaped scar in the Earth’s crust, the trench measures around 2,550 km long, 69 km wide on average, and has a maximum depth of 10.91 km at the Challenger Deep. At the same time, some other efforts measured the deepest portion at 11.034 km. The deep runs several hundred kilometres towards the US island of Guam in the southwest direction

The deep holes in the Mariana Trench were formed due to the collision of converging plates of the oceanic lithosphere. During the collision, one plate descended into the Earth’s mantle, and the downward flexure formed a trough at the line of contact between the plates.

At the bottom of the Marina Trench, the density of water increases by 4.96% due to the high pressure at the seabed. However, the expeditions conducted at various times have observed the presence of large creatures such as flatfish, large shrimp-type amphipods, crustaceans, and even an unknown type of snailfish. Scientists believe there are many new species in the Mariana Trench awaiting discovery.


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