Question

Which one among the following is considered the deepest point of the oceans?
1. Tonga Trench
2. Mariana Trench
3. Philippine Trench
4. Kermadec Trench

Answer 1

Correct Answer - Option 2 : Mariana Trench

The correct answer is ​Mariana Trench.

• Mariana Trench is the deepest part of the ocean and the deepest location on Earth.
• It is 11,034 meters (36,201 feet) deep, which is almost 7 miles.
• Deep-sea trench, also called oceanic trench, any long, narrow, steep-sided depression in the ocean bottom in which occur the maximum oceanic depths, approximately 7,300 to more than 11,000 meters.
• They typically form in locations where one tectonic plate subducts under another.
• The deepest known depression of this kind is the Mariana Trench, which lies east of the Mariana Islands in the western North Pacific Ocean.
• It reaches 11,034 meters (36,200 feet) at its deepest point.

• Tonga Trench
  • It is an oceanic trench located in the southwestern Pacific Ocean.
  • It is the deepest trench in the Southern hemisphere and the second deepest on Earth.
  • The fastest plate-tectonic velocity on Earth is occurring at this location, as the Pacific Plate is being subducted westward in the trench. 
• Philippine Trench 
  • It is a submarine trench on the floor of the Philippine Sea of the western North Pacific Ocean bordering the east coast of the island of Mindanao.
• The Kermadec Trench
  • It is one of Earth's deepest oceanic trenches, reaching a depth of 10,047 meters (32,963 ft).
  • Formed by the subduction of the Pacific Plate under the Indo-Australian Plate, it runs parallel with and to the east of the Kermadec Ridge and island arc.