TNT Equivalent

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TNT equivalent

[¦te‚en¦tē i′kwiv·ə·lənt]
A measure of the energy released in the detonation of a nuclear weapon, expressed in terms of the weight of TNT that would release the same amount of energy when exploded; usually expressed in kilotons or megatons of TNT; based on the release of 109 calories (approximately 4.18 × 109 joules) of energy by 1 ton of TNT.

TNT Equivalent


the mass of a conventional charge of a chemical explosive—trinitrotoluene, or TNT—whose energy of explosive decomposition is equal to the energy released in a given nuclear explosion. The TNT equivalent characterizes the explosive power of nuclear and thermonuclear charges and is calculated according to the formula

where Qne is the energy released in the nuclear explosion and QTNT is the explosive energy of 1 ton of trinitrotoluene; it is measured in kilotons and megatons.

References in periodicals archive ?
The impact energy was equivalent to an explosion of roughly 15 tons of TNT, at least three times higher than the largest previously seen event observed by NASA in March last year.
The vast majority of it was likely vaporized or pulverized to dust when it slammed into the atmosphere and released the kinetic energy equivalent of about 500,000 tons of TNT, or about 30 times the explosive power of the Hiroshima atomic bomb.
Speeding at some 40,000 mph, it released energy equal to 500,000 tons of TNT.
3 meters) in diameter, and traveling about 56,000 mph (90,123 kph) when it slammed into the moon and exploded with the force of five tons of TNT.
A small celestial object around 60 metres in size entered the Earth's atmosphere at hypersonic speed, exploding at high altitude releasing energy equivalent to 10-15 million tons of TNT.
Fragments of the asteroid caused an explosion equivalent to 500,000 tons of TNT when they hit.
The Threshold Test Ban Treaty, signed in 1974, banned underground nuclear weapons tests having an explosive force of more than 150 kilotons, the equivalent of 150,000 tons of TNT, 10 times the force of the Hiroshima bomb.
The explosions engulfed explosive processing facilities with 2 500 metric tons of conventional munitions and 20 tons of TNT.
The scientist analyzed data showing the presence of radioisotopes that indicated a uranium bomb had exploded and after a year of work, wrote Nature, "concluded that North Korea carried out two small nuclear tests in April and May 2010 that caused explosions in the range of 50--200 tons of TNT equivalent.
The explosion yields the force of 20,000 tons of TNT.
During security raids conducted last year, the forces seized two caches containing 560 kg of lethal radioactive chemicals, 2 tons of TNT highly explosives, 28 RPG7 shells, 130 RPG7, 791 mortars, 641 detonators, 19 hand grenades, 209 improvised explosive devices (IEDs), 139 weapons, 18 motorcycles, 24 stolen cars, etc, according to the brigadier.