By definition as a sea abyss, the trench presents a depth of thousands of meters in the sea and many mysteries within it have not been revealed.
The Eurasian Trench, which is 5,450 meters deep and 350 kilometers long, is the deepest point in the Arctic Ocean.
The Java Trench stretches from the islands of Java, Sumatra, to the Andaman Islands. At 7,725 meters deep, this trough is the deepest point in the Indian Ocean.
At 7,760 meters deep and 300 kilometers long, the Romanche Trench is the third deepest inlet in the Atlantic Ocean.
The South Sandwich Trench is 8,428 meters deep and 956 kilometers long, making it the second deepest in the Atlantic Ocean.
As the status of the deepest trench in the Atlantic Ocean, and often the cause of a number of tsunamis and earthquakes, the Puerto Rico Trench has a depth of up to 8,800 meters and a length of more than 800 kilometers.
The Kermadec Trench is 10,047 meters deep and spans thousands of kilometers. Located in the Pacific Ocean, this trough is part of the Louisville Ridge, a collection of more than 70 seamounts.
The Philippine Trench is at 10,540 meters deep, making it the fourth deepest inlet in the Pacific Ocean.
Having a depth of approximately 10,500 meters below sea level, the Kuril-Kamchatka Trench which runs near Kuril Island and off the coast of Kamchatka contributes to a number of volcanic activities in the area.
With a depth of 10,882 meters below sea level, the Tonga Trench in the Pacific Ocean is the deepest trench in the southern hemisphere.
The Mariana Trench, which spans 2,550 kilometers between Australia and Japan, has the deepest point on Earth, the Challenger Deep, which is more than 11 kilometers below sea level.