The Vela Incident (sometimes referred to as the South Atlantic Flash) was an unidentified "double flash" of light that was detected by an American Vela Hotel satellite on September 22, 1979.In his 2006 book On the Brink, the retired C.I.A. clandestine service officer, Tyler Drumheller, wrote of his 1983–88 tour-of-duty in South Africa:
"We had operational successes, most importantly regarding Pretoria's nuclear capability. My sources collectively provided incontrovertible evidence that the apartheid government had in fact tested a nuclear bomb in the South Atlantic in 1979, and that they had developed a delivery system with assistance from the Israelis."It may have been a nuclear detonation near one the worlds most remote places Bouvet Island, which is the tiny yellow dot in the centre of this Orthographic Projection:-
Bouvet Island was probably discovered on January 1, 1739, by Jean-Baptiste Charles Bouvet de Lozier,
It's difficult to land except by helicopter and 90% of it is Glacier
It's about 1700 miles to the nearest human and about 2500 miles to the nearest shops.
In 1964, an abandoned boat was discovered on the island, along with various supplies;
...the boat's passengers were never found.
More Vela info from Steel Hip