Not sure of the Mythological nature of your question.
The Bermuda Triangle is a modern thing dating from 1945 and lost of 5 airships. They totally and simply vanished. No wreckage. No bodies. Silence. By the way Spielberg used that event in Close Encounters of the Third Kind.
But anyway, put the Bermuda Triangle in the usual basket:
* Area 51
* Nessie
* Crop circles
* Nostradamus/Saint Malachy/Paco Rabanne prophecies There is dozen of such hoaxes and the modern Internet so love hoaxes!