Bilby’s subsidence crater resulted from a 249-kiloton atomic test, (equivalent to over 200,000 tons of TNT) which occurred on September 13, 1963.
Archive for 'Nevada Test Site'
The underground Gabbs test was planned for early 1993 at the Nevada Test Site, but it was cancelled when a moratorium on testing came into effect in October 1992.
In this view from the Monastery Observation Post at the Nevada Test Site the subsidence craters at the northern end of Yucca Flats are barely visible. Pan right, and the sands of Frenchman Flats may be seen in the far distance.
On May 8, 1953, flying overhead at 19,000 feet, a B-50 bomber dropped a 27-kiloton nuclear device. Detonating at 2,323 feet, the bomb blew sections of the railroad trestle from its foundation and bent the girders.
A 104 kiloton thermonuclear explosion on July 6, 1962 created the Sedan Crater in Area 10 of Yucca Flat at the Nevada Test Site. At 1,214 feet in diameter and 330 feet deep, Sedan is the largest nuclear-caused crater in the United States.