The seafloor in the Bermuda Triangle ranges from roughly 5,000–6,000 feet (about 1,500–1,800 meters) deep in many areas down to about 27,000–27,500 feet (around 8,300 meters) at its deepest nearby point in the Puerto Rico Trench.

How deep is the Bermuda Triangle?

  • Much of the Bermuda Triangle sits over deep Atlantic seafloor that is about 5,000–6,000 feet (1,500–1,800 meters) below the surface.
  • The average depth in the broader Triangle area is often quoted around 10,000 feet (about 3,000 meters).
  • The deepest nearby point is the Milwaukee Depth in the Puerto Rico Trench, inside the Triangle region, reaching about 27,493 feet (8,380 meters), the deepest spot in the Atlantic Ocean.

Why the depth varies

  • The area includes underwater canyons, steep drop‑offs, and part of the Puerto Rico Trench, which creates big changes in depth over relatively short distances.
  • While this extreme depth sounds dramatic, scientists note that it is not uniquely strange compared with other deep‑ocean trenches; similar or greater depths occur in places like the Mariana Trench in the Pacific.

Does the depth explain the “mystery”?

  • Modern analyses point out that the number of accidents in the Bermuda Triangle is not unusually high for such a heavily traveled region of ocean, suggesting normal navigational and weather risks rather than anything supernatural.
  • The depth itself does make wrecks hard to find and investigate, which has helped the mystique of the area persist in news, books, and online discussions.

TL;DR: The Bermuda Triangle is mostly several thousand feet deep, with an average around 10,000 feet, and a maximum of about 27,500 feet at the Milwaukee Depth in the Puerto Rico Trench.