which is the deepest ocean in the world?

Answer 1

The Pacific Ocean, at a place called the Marianas Trench near the Philippine Islands.

Answer 2

The deepest part of the ocean was first pinpointed in 1951 by HM Survey Ship Challenger in the Marianas Trench in the Pacific Ocean. On January 23, 1960, the US Navy Trieste vessel descended to the bottom of the Pacific Ocean, and on March 24, 1995, the Japanese probe Kaiko recorded a depth of 10,911 m (35,797 ft), the most accurate measurement yet taken.

Answer 3

The Mariana Trench (or Marianas Trench) is the deepest known submarine trench, and the deepest location in the Earth's crust itself. It is located in the floor of the western North Pacific Ocean, to the east and south of the Mariana Islands

Answer 4

the Mariana Trench is the deepest location in the Earth's crust itself. It is located in the floor of the western North Pacific Ocean, taking the record at 10,911m (6.78 mi) below sea lever

Answer 5

The following is a list of the deepest parts of the Earth's oceans and seas:

(all figures are number of ____ below sea level)


Mariana Trench (10,911 m) (35,797 ft) (6.78 mi)
Mindanao deep (10,850 m) (35,597 ft) (6.74 mi)
Kuril-Kamchatka Trench (10,500 m) (34,449 ft) (6.52 mi)
Kermadec Trench (10,047 m) (32,963 ft) (6.24 mi)
Tonga Trench (9,900 m) (32,480 ft) (6.15 mi)
Japan Trench (9,000 m) (29,527 ft) (5.59 mi)
Milwaukee Deep (8,605 m) (28,232 ft) (5.35 mi)
Puerto Rico Trench (8,400 m) (27,559 ft) (5.22 mi)
Peru-Chile Trench (8,065 m) (26,456 ft) (5.01 mi)
Cayman Trench (7,686 m) (25,216 ft) (4.78 mi)


The deepest place in the ocean visited by a human:

The Challenger Deep is the deepest known point in the oceans. It lies in the Pacific Ocean at 11°22′N 142°36′E in the Mariana Islands group at the southern end of the Mariana Trench. The closest land is Fais Island, one of the outer islands of Yap, 289 km southwest and Guam 306 km to the northeast. The point is named after the British Royal Navy survey ship HMS Challenger II, which surveyed the trench in 1951


The maximum surveyed depth is 10,923 metres (35,838 feet). On 23 January 1960, the Swiss-built Bathyscaphe Trieste, acquired by the US Navy, descended to the ocean floor in the trench manned by its inventor Jacques Piccard and USN Lieutenant Don Walsh. The descent took almost five hours and the two men spent barely twenty minutes on the ocean floor before undertaking the three hour fifteen minute ascent. They measured the depth as 10,916 metres (35,813 feet). At the ocean floor they observed small sole and flounder and noted that the floor consisted of diatomaceous ooze.

In 1984, a Japanese survey vessel using a narrow, multi-beam echo sounder took a measurement of 10,923 meters (35,838 feet).

On 24 March, 1995 the Japanese Kaiko a robotic deep-sea probe broke the depth record for unmanned probes when it reached close to the surveyed bottom of the Challenger Deep. Created by the Japan Marine Science and Technology Center (JAMSTEC) it was one of the rare unmanned deep-sea probes in operation that could dive deeper than 6,000 metres (19,680 feet). Its recorded depth of 10,911 m (35,797 ft) for the Challenger Deep is believed to be the most accurate measurement taken yet. Unfortunately, Kaiko was lost at sea on 29 March, 2003 after just over eight years of service when one of the secondary cables snapped during an approaching typhoon. Currently no other operational vehicle exists that is capable of reaching the same depths and no other manned vehicle has come to the same depth as Trieste.

Answer 6

In the Marianas Trench, south of Mindanao Island, in the Philippines. It is deeper than the height of Mt. Everest.

Answer 7

the Marianas Trench. it's quite deep...