1968 ca, FANGATAUFA or Fangatafoa, Tuamotu Archipelago, French Polynesia: A french NUCLEAR TEST.Fangataufa was the site of France's first two-stage thermonuclear test, code named Canopus, detonated on August 24, 1968. The nuclear explosion had a yield of 2.6 megatons. Along with its neighboring atoll, Moruroa, it has been the site of approximately 200 nuclear bomb tests