Ocean Depth Guide
The five oceans cover 71% of Earth's surface. This reference covers area, average depth, maximum depth, and key trenches for each.
The Five Oceans
Major Ocean Trenches
| Trench | Ocean | Max Depth | Notes |
|---|---|---|---|
| Mariana Trench (Challenger Deep) | Pacific | 10,994 m | Deepest known point on Earth |
| Tonga Trench | Pacific | 10,882 m | Second deepest; fastest subducting plate |
| Philippine Trench | Pacific | 10,540 m | Third deepest overall |
| Kuril-Kamchatka Trench | Pacific | 10,500 m | Northwest Pacific |
| Puerto Rico Trench | Atlantic | 8,376 m | Deepest point in the Atlantic Ocean |
| South Sandwich Trench | Atlantic/Southern | 8,264 m | Near Antarctica |
| Java (Sunda) Trench | Indian | 7,450 m | Deepest point in the Indian Ocean |
| Eurasia Basin | Arctic | 5,450 m | Deepest point in the Arctic Ocean |