Theories about the mysterious disappearances in the Bermuda Triangle include some sort of magnetic vortex, unpredictable weather, a glitch in the space-time continuum, gaseous compounds and even aliens, according to About.com. It is likely, however, that the hundreds of disappearances in the Bermuda Triangle can be attributed to many factors rather than a single one.
Although the Bermuda Triangle has been shrouded in mystery for decades, records indicate that there have been no more disappearances within that region than in any other region of ocean. The area stretching from the southern coast of Florida to Puerto Rico and Bermuda gained fame in 1964 when it was dubbed "The Bermuda Triangle" in an article about the odd disappearances that had happened there.
Over the years many theories of have formed: some scientific, such as magnetic vortexes and methane gas, and some paranormal, such as the idea of aliens being responsible. The idea of magnetic variations evolved from firsthand accounts of people who had odd experiences in the Bermuda Triangle. They reported issues with equipment on their planes and boats, which could be explained by magnetic variations.
Although the theory of methane-gas leaks from the ocean could explain many ship disappearances, it fails to explain the disappearances of aircraft in the region. Although it has been suggested that supernatural forces may be involved, it is likely that the disappearances are due to a variety of factors, both human and scientific in nature.