The Bermuda Triangle: A Legendary Region, Not a Geological Basin

The Bermuda Triangle is a culturally defined region, not a geological or oceanographic basin. Its vertices: Miami (Florida), Bermuda, San Juan (Puerto Rico). Area: ~1.3M km² (500,000 sq mi). No official boundaries—no treaty, no scientific body, no hydrographic definition recognizes it.

What It Is Not

• Not a sedimentary basin (geology)
• Not an oceanic basin (bathymetry — contains Puerto Rico Trench, Blake Plateau, Bahamas Platform)
• Not a current system (Gulf Stream crosses it)
• Not a statistical anomaly (USCG/NOAA: incident rate = other busy maritime zones)

What It Is

A 1964 pulp magazine term (Vincent Gaddis, Argosy) popularized by Charles Berlitz's 1974 bestseller. The "mystery" relies on: selective reporting, ignoring routine traffic, conflating distinct incidents (weather, human error, mechanical failure), and the region's genuine hazards (hurricanes, Gulf Stream variability, shallow banks, magnetic variation).

Real Hazards in the Region

• Hurricane alley (June-Nov)
• Gulf Stream eddies (3-5 kt cross-currents)
• Bahamas Banks — shallow, uncharted patches
• Magnetic variation (agonic line shifts) — affects older compasses
• High traffic density (cruise, cargo, pleasure, military)

Basins in the Vicinity

Blake-Bahama Basin (deep, east of Florida). Puerto Rico Trench (deepest Atlantic, 8,605 m). Cayman Trough (spreading center). These are real basins. The Triangle is a story we tell over them.