The Bermuda Triangle

 The most famous US Navy losses are USS Cyclops in March 1918 and the aircraft of Flight 19 in December 1945 - no physical traces of them have ever been found. Another well known disappearance is the civilian tanker SS Marine Sulphur Queen which sank in February 1963.

Natural Explanations

Compass Variations

Compass problems are one of the cited phrases in many Triangle incidents. While some have theorized that unusual local magnetic anomalies may exist in the area, such anomalies have not been found. Or at least, those who found it, as reported by Flight 19, did not return to tell.

The Gulf Stream

The Gulf Stream is a deep ocean current that originates in the Gulf of Mexico. In essence, it is a river within an ocean, and, like a river, it can and does carry floating objects, dispersing them very fast. It has a surface speed of up to about 5.6 m.p.h.

Human Error

One of the most cited explanation in official inquiries as to the loss of an aircraft or vessel is human error. Stubbornness may have caused the loss of a sailing yacht, [i]Revonoc[/i], as she sailed into the teeth of a storm south of Florida on January 1, 1958.

Violent Weather

Hurricanes are powerful storms, which form in tropical waters and have historically cost thousands of lives lost and caused billions of dollars in damage. The sinking of Francisco de Bobadilla's Spanish fleet in 1502 was the first recorded instance of a destructive hurricane. These storms have in the past caused a number of incidents related to the Triangle.

A powerful downdraft of cold air was suspected to be a cause in the sinking of the Pride of Baltimore on May 14, 1986. The crew of the sunken vessel noted the wind suddenly shifted and increased velocity from 20 mph to 60–90 mph. A similar event occurred to the Concordia in 2010 off the coast of Brazil.

Methane Hydrates

It has been hypothesized that periodic methane eruptions, also called "mud volcanoes", may produce regions of frothy water that are no longer capable of providing adequate buoyancy for ships. If this was the case, such an area forming around a ship could cause it to sink very rapidly and without warning.

However, no large releases of gas hydrates are believed to have occurred in the Bermuda Triangle for the past 15,000 years.

Rogue waves

In various oceans around the world, rogue waves have caused ships to sink and oil platforms to topple. Until 1995 these waves were considered to be a mystery and a myth.

 Read More

http://www.livescience.com/23435-bermuda-triangle.html

 So, these are the explanations offered, some acceptable and others not.