What is the deepest point in the Caribbean Sea?

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The deepest point in the Caribbean Sea is the Cayman Trench, also known as the Cayman Trough.

The feature lies in the western Caribbean between Jamaica and the Cayman Islands. It is a long, complex pull-apart basin created along the boundary between the North American Plate and the Caribbean Plate. Its deepest section reaches roughly 7,600 meters below sea level, making it the Caribbean's deepest submarine feature.

The name Cayman Trench is a valid and widely used name, although Cayman Trough is often preferred in geological references. Other names include Bartlett Deep and Bartlett Trough. The feature also contains the Mid-Cayman Rise, a small spreading ridge where new oceanic crust is formed.

A likely mix-up is the Puerto Rico Trench, which is deeper than the Cayman feature but lies in the Atlantic Ocean north of Puerto Rico, outside the Caribbean Sea. The Yucatán Basin and Caribbean Basin are broad seafloor regions, not the single deepest point asked for here.

Source: Wikipedia · fact-checked Aug. 2026

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