Yes, it is. The deepest points in theoceans of the Earth are in order:
Deepest Point in the World (and Pacific Ocean)
Challenger Deep, Mariana Trench, Western Pacific Ocean: 35,840 feet / 10,924 meters
Deepest Point in the Atlantic Ocean
Puerto Rico Trench: 28,374 feet / 8648 meters
Deepest Point in the Arctic Ocean
Eurasia Basin: 17,881 feet / 5450 meters
Deepest Point in the Indian Ocean
Java Trench: 23,376 feet / 7125 meters
Deepest Point in the Southern Ocean
Southern end of the South Sandwich Trench: 23,736 feet / 7235 meters
NO it is not the Puerto Rico Trench.
The 2nd deepest deep ocean trench in the world is the Philippine Trench, its deepest part is called the Galathea Depth: 10,540 meters (5,763 fathoms or 34,580 feet).
Actually, the 2nd deepest TRENCH is the Tonga Trench, with a maximum depth of 10880 m in the Horizon Deep. The 1st, 2nd and 3rd deepest deeps are located in the Mariana Trench. Challenger Deep, 10912 m; Vitiaz Deep, 10908m; and Serena deep, ~10890 m. An interesting point is that only the Challenger and Vitiaz deeps have been confirmed by dives to the bottom. All the other deeps have only been measured by sonar, which can easily have over 100 m of error, often on the side of over-estimation. Until a dive to the Vitiaz deep in 2009 by the ROV Nereus, the official (Sonar) depth was 11022 m.
You're Both wrong:
Trench
Ocean
Depth
Mariana Trench
Pacific Ocean
11,033m
Tonga Trench
Pacific Ocean
10,882m
Kuril-Kamchatka Trench
Pacific Ocean
10,542 m
Philippine Trench
Pacific Ocean
10,540 m
Kermadec Trench
Pacific Ocean
10,047 m
Izu-Bonin Trench (Izu-Ogasawara Trench)
Pacific Ocean
9,780 m
Japan Trench
Pacific Ocean
9,000 m
Puerto Rico Trench
8,605 m
Peru-Chile Trench or Atacama Trench
Pacific Ocean
8,065 m
Atlantic Ocean
The Mindanao Trench reaches a maximum depth of around 10,500 meters (34,449 feet) near the Philippine Trench. It is one of the deepest parts of the Earth's oceans.
11,000 to 10,500 meters in the Pacific Ocean. 8600 meters in the Atlantic Ocean. 8000 meters in the Indian Ocean.
The greatest known depth which lies in the Pacific Ocean is the Mariana Trench which has a depth of 35,797 ft/10,911 meters.
The Mariana Trench is the deepest trench in Earth's oceans.
8,370 m (27,453 ft) in the Puerto Rico Trench in 1970
The Mariana Trench is the deepest part of the world's oceans... It reaches a maximum-known depth of about 10,916 metres (35,814 ft) at the Challenger Deep
The Puerto Rico Trench is an oceanic trench located on the boundary between the Caribbean Sea and the Atlantic Ocean. The island of Puerto Rico lies immediately to the south of the fault zone and the trench. The trench is 800 kilometers (500 mi) long and has a maximum a depth of 8,605 meters (28,232 ft) at Milwaukee Deep, which is the deepest point in the Atlantic Ocean.
It is the Mariana Trench, located a little bit outside of Japan.
The deepest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench at a depth of 10,911 m (35,798 ft) below sea level.Underwater the Marianas Trench would be the deepest Trench in the World.Challenger Deep's Deepest part is about 35,838 feet deep (11035 meters).The deepest point in any ocean is the Mariana Trench (aka Challenger Deep) in the western Pacific Ocean at 11,033 metres deep.
The answer to your question, concerning the deepest trench in the Atlantic Ocean, is that of the Puerto Rico Trench. It is actually found upon the boundary between the Caribbean Sea and the Atlantic Ocean. This trench has been measured at a maximum depth of 28,232 ft; a depth of little over five miles! I hope that this answers your question.
The Mariana Trench in the western North Pacific Ocean is the deepest point in the world, reaching a depth of 10,911 metrers (35,768 ft).PIEPIEPIEPIEPIEPIE
11,034 meters