One explanation is that ships and planes that have gone missing actually went missing in a different area of the ocean. Simply, their location had been miscalculated.
The Bermuda Triangle is actually very large and it is one of the most heavily traveled shipping areas in the world. There are also numerous cruise ships and aircraft traffic is very busy as well. It is no surprise that accidents happen in this area.
A man named Lawrence Kusche, a researcher from the University of Arizona, wrote a book named The Bermuda Triangle Mystery: Solved. Here are some things he concluded in his book:
- The number of ships and aircraft reported missing in the area was not significantly greater, proportionally speaking, than in any other part of the ocean.
- In an area frequented by tropical storms, the number of disappearances that did occur were, for the most part, neither disproportionate, unlikely, nor mysterious.
- The numbers themselves had been exaggerated by sloppy research. A boat's disappearance, for example, would be reported, but its eventual (if belated) return to port may not have been.
- Some disappearances had, in fact, never happened.
- The legend of the Bermuda Triangle is a manufactured mystery.
Well, the Bermuda Triangle disappearances are a mystery, and have been for quite some time, so the only "explanations" at this point are theories. The sheer size of area we're talking about is massive, so it's also possible there are several explanations, or none at all. It is an extremely busy shipping lane, and everyday dozens of vessels and hundreds of aircraft pass through the so called Triangle with no incident whatsoever.
You asked how some people explain it, though, so here are a few ideas and theories people have:
1) Magnetic fields of the Earth are different in this rea, which through off magnetic instruments like compasses and navigation equipment, causing planes to crash and radios not to work
2) Supernatural forces are at work, perhaps even by extraterrestrials, that change the laws of physics in this particular region
3) It's a myth, and studies of the number and type of actual disappearances match the rates of other seas and oceans around the globe, leading many to believe the stories of disappearance have been imagined, fabricated or exaggerated
Bermuda Triangle refers to an area in sea off the southeastern coast of Florida in the USA, reputed to as an area where any ship sailing into that area or airplanes flying into the area are suppose to vanish mysteriously without leaving a trace. However, this belief about Bermuda Triangle is far from reality. Though since 1854, more than 50 ships and aircraft have vanished in or near the area, reality is that presently many commercial and military craft cross this area safely every day.
There are many conjectures and fancy theories about the cause of disappearance of ships and airplanes in this area without leaving any trace, the most favored scientific explanation is that the crafts that vanished were destroyed by violent, unexpected storms or downward air currents. Then their wreckage may have been swept away by swift currents far from the area where the crafts disappeared.