The first blast, a 5.3 kiloton bomb, took place in 1964 at the bottom of a shaft southwest of Hattiesburg and four miles ( 6 km ) northeast of Baxterville.
22.
In fact, an underground test detonation of a 2 . 3-kiloton bomb 52 meters deep several years ago contaminated a 2 . 5-kilometer radius of the area with high-level radioactivity.
23.
After the two countries conducted nuclear tests in 1998, Ramana calculated that a 15-kiloton bomb dropped on Bombay would kill between 150, 000 and 850, 000 people in the short term.
24.
M . V . Ramana, a Princeton University physicist from India, calculated that a 15-kiloton bomb dropped on Bombay would kill between 150, 000 and 850, 000 people in the short term.
25.
Green's " Nuclear Device " is a mechanically accurate representation of a 15 kiloton bomb in parts of a cake tin, complete with flash gun detonators _ except the explosive plutonium is replaced by a baseball.
26.
The bomb was attached outside underneath of the aircraft, and carrying the " Tsar Bomba " semi-externally, somewhat like a RDS-6S thermonuclear bomb, but the designs proved flawed, RDS-37, a 2.9-megaton thermonuclear bomb, and RP-30-32 200-kiloton bombs.
27.
Eventually, North Korea could test a nuclear weapon, if it has one, by digging a hole several hundred meters ( yards ) deep and detonating a 10-kiloton bomb that would quickly register on seismographs in neighboring countries.
28.
A yard ( 90 centimeters ) long and 8 to 12 inches ( 20 to 30 centimeters ) in diameter, it would have an explosive punch several times that of the 15 kiloton bomb that devastated Hiroshima.
29.
The 15-kiloton bomb described in the Bombay study is the same size explosive that leveled much of Hiroshima, Japan, in World War II . India and Pakistan are thought to have similar weapons in their respective nuclear arsenals.
30.
Since the E1 component of nuclear EMP depends on the prompt gamma ray output, which was only 0.1 % of yield in Starfish Prime but can be 0.5 % of yield in low yield pure nuclear fission weapons, a 10 kiloton bomb can easily be 5 x 8 % = 40 % as powerful as the 1.44 megaton Starfish Prime at producing EMP.
