Top 10 Deepest Ocean Trenches
This ranking presents the deepest ocean trenches based on maximum depth measurements, showcasing Earth's most extreme geographical features. Data sourced from authoritative marine geological studies, reflecting tectonic subduction zone activity.
Interesting Facts & Summary
As of 2026, the Mariana Trench remains the undisputed king of the ocean depths. Its deepest point, the Challenger Deep, sits at approximately 10,935 meters. To put that in perspective, if you placed Mount Everest (8,848m) upside down into the trench, its peak would still be submerged under more than 2 kilometers of water. The pressure here reaches a crushing 1,100 atmospheres, equivalent to having about 50 Boeing 747 jets piled on top of you. Astonishingly, even in this environment of extreme pressure and perpetual darkness, scientists continue to document life forms like amphipods, highlighting the incredible resilience of biology in extreme conditions.
| Rank | Name | Value (with unit) | Additional Info |
|---|---|---|---|
Mariana Trench | 10984 | Western Pacific, Challenger Deep is the deepest point | |
Tonga Trench | 10882 | South Pacific, boundary between Pacific and Indo-Australian Plates | |
Philippine Trench | 10545 | Western Pacific, subduction zone of Eurasian and Philippine Plates | |
| 4 | Kermadec Trench | 10047 | South Pacific, near North Island of New Zealand |
| 5 | Japan Trench | 9072 | Northwest Pacific, Pacific Plate subducting under Eurasian Plate |
| 6 | Kuril-Kamchatka Trench | 8486 | Northwest Pacific, part of Pacific Ring of Fire |
| 7 | Peru-Chile Trench | 8065 | Eastern Pacific, Nazca Plate subducting under South American Plate |
| 8 | Puerto Rico Trench | 8376 | Deepest point in Atlantic, boundary between Caribbean and North American Plates |
| 9 | South Sandwich Trench | 8428 | South Atlantic, subduction zone of Antarctic and South American Plates |
| 10 | Java Trench | 7725 | Indian Ocean, Indo-Australian Plate subducting under Eurasian Plate |