![]() Such a strike would involve detonating a bomb in the atmosphere, instead of firing a long-range missile at a major U.S. North Korea’s Nuclear Weapons Institute said Sunday’s test verified the functioning of a hydrogen bomb, including the “fission to fusion power rate and all other physical specifications reflecting the qualitative level of a two-stage thermo-nuclear weapon,” according to the official KCNA news agency.įor the first time, North Korea also specifically mentioned the possibility of a electromagnetic pulse, or EMP, attack. Even if it’s the same size and weight, if it’s a hydrogen bomb, its power can be tens or hundreds times bigger,” Chang said. “This means explosions can happen double and triple. Once nuclear fusion is started, fast neutrons are created which once again trigger nuclear fission of uranium inside the bomb. “The bomb North Korea showed today, if you look at the shape, the front part looks like an atomic bomb which triggers nuclear fission and the back part, a second stage that generates nuclear fusion reactions,” said Chang Young-keun, a rocket science expert at the Korea Aerospace University. ![]() Suh, a nuclear engineering professor at Seoul National University. “That scale is to the level where anyone can say (it is) a hydrogen bomb test,” said Kune Y. NORSAR, a Norwegian earthquake monitoring agency, estimated the yield at 120 kilotons, significantly above the 15 kiloton “Little Boy” bomb dropped on Hiroshima and the 20 kiloton “Fat Man” dropped on Nagasaki at the end of World War Two. The detonation produced 10 times more power than the fifth nuclear test a year ago, South Korean and Japanese officials said. ![]() Geological Survey at magnitude 6.3 - said there was enough strong evidence to suggest the reclusive state has either developed a hydrogen bomb or was getting very close. North Korea conducted its sixth and most powerful nuclear test on Sunday, which it said was a successful detonation of an advanced hydrogen bomb, technically known as a two-stage thermonuclear device.Īll of North Korea’s six nuclear tests including the one on Sunday have taken place at its underground testing site in Punggye-ri, deep in mountainous terrain, and it is hard to independently verify the claims.īut experts who studied the impact of the earthquake caused by the explosion - measured by the U.S. North Korean leader Kim Jong Un provides guidance on a nuclear weapons program in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang September 3, 2017.
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