The legend of the Bermuda Triangle 

The Bermuda Triangle is a loosely defined region in the western Atlantic bounded by Miami, Bermuda, and San Juan, Puerto Rico, and it covers roughly 500,000 to 1,500,000 square miles. High-profile disappearances early in the 20th century caused a sense of mystique to become associated with it. Articles and books were written about it, often exaggerating the stories, which added to the suspense and mystery surrounding the region.

One of the most famous cases occurred in 1945, when Flight 19, a squadron of five US Navy bombers, vanished during a routine training mission. The 14 crew members reported disorientation, with their compasses malfunctioning, before losing contact. A rescue plane sent to find them also disappeared, claiming 13 more lives. No wreckage or bodies were ever conclusively found. Similarly, ships like the USS Cyclops, a Navy cargo vessel carrying 309 people, vanished without a trace in 1918 while sailing through the Triangle.

These incidents, along with many others, sparked theories ranging from plausible to fantastical: magnetic anomalies, rogue waves, methane gas eruptions, alien abductions or even portals to another dimension. 

But systematic research into the stories emanating from the Triangle found that the supernatural had not been involved; the losses, terrible though they were, could be explained by natural causes. In some cases, no disappearance had actually taken place. It now seems that the mystery of the Bermuda Triangle was manufactured for a sensation-loving public, which generated a good profit at the time. 

What causes the disappearances? 

Scientists and investigators have proposed several natural explanations for the Bermuda Triangle’s accidents.

It sits in a region prone to sudden, severe weather, including waterspouts, tropical storms and hurricanes. Not only do these generate massive waves and powerful winds that can overwhelm ships and planes, but waterspouts, resulting from a tornado sweeping across the sea, can swiftly form, posing a deadly threat. Many disappearances coincide with stormy conditions.

The Bermuda Triangle includes areas where true north and magnetic north align, potentially confusing navigators. In the era before GPS, navigation relied heavily on compasses, which can be thrown off by the region’s unique magnetic variations. This increases the likelihood of accidents, for the Triangle is a busy maritime corridor with heavy ship and air traffic. Flight 19’s pilots, for example, reported compass failures, leading them to fly off course until they ran out of fuel.

Another factor is the Gulf Stream. This swift and powerful current that flows through the Triangle is capable of carrying debris far from a wreck site. This could explain why little or no wreckage is often found after disappearances. A sinking ship or crashed plane could be swept away, leaving investigators with nothing to analyse.

Another intriguing but theoretical explanation for some of the disappearances involves methane gas trapped in the ocean floor. If a pocket of methane hydrate—a frozen gas deposit—erupts, it could bubble up, reducing the water’s density and causing ships to lose buoyancy and sink rapidly. For aircraft, methane in the air could disrupt engines or cause explosions. While this theory is plausible, no direct evidence links methane eruptions to specific Triangle incidents.

Rogue waves—sudden, towering walls of water—can form in the Triangle due to converging currents and storms. These could capsize ships or overwhelm low-flying aircraft, leaving neither time for distress calls nor wreckage to find.

The region’s high traffic means accidents are statistically expected, and the number of disappearances is not significantly higher than in other busy ocean areas. 

Why does the mystery persist? 

Yet the Bermuda Triangle maintains its reputation, with some of the incidents seeming to defy logic. Ships found intact but abandoned, or planes with experienced pilots vanishing in clear weather, continue to fuel speculation, especially when there are neither survivors nor wreckage. The clustering of mysterious cases, combined with the eerie absence of evidence, keeps the legend alive.

A modern perspective 

Advances in technology, such as satellite tracking, sonar and GPS, have reduced the Triangle’s mystique. Fewer modern disappearances are attributed to it, as better navigation and communication systems leave less room for mystery. The Bermuda Triangle may not be a supernatural vortex, but its blend of environmental hazards, human error, and unanswered questions ensures its place in maritime lore.

It’s a reminder that the ocean, vast and untamed, can still swallow secrets whole.

Ethologist Ila France Porcher, author of The Shark Sessions and The True Nature of Sharks, conducted a seven-year study of a four-species reef shark community in Tahiti and has also studied sharks in Florida with shark-encounter pioneer Jim Abernethy. Her observations, the first of their kind, have yielded valuable details about the reproductive cycles, social biology, daily behaviour patterns, roaming tendencies and cognitive abilities of sharks.