North Korea announces successful hydrogen bomb test - world reaction to Kim Jong-un's latest nuclear step
North Korea leader Kim Jong-un authorised the H-bomb test - a move condemned around the world. The explosion, the secretive nation's FOURTH nuclear test, caused a massive earthquake
North Korea has come under fire from nations across the globe after claimed it had successfully tested a hydrogen bomb.
Seismic activity from the region appears to support the secretive state's claim that it had detonated a H-bomb underground.
Britain, the United States, Russia, Japan and the United Nations have all strongly condemned the nation, while South Korea has posted troops to the border.
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“They could have tested some middle stage kind (of device) between an A-bomb and H-bomb, but unless they come up with any clear evidence, it is difficult to trust their claim.”
Joe Cirincione, a nuclear expert who is president of Ploughshares Fund, a global security organisation, said North Korea may have mixed a hydrogen isotope in a normal atomic fission bomb.
“Because it is, in fact, hydrogen, they could claim it is a hydrogen bomb,” he said.
“But it is not a true fusion bomb capable of the massive multi-megaton yields these bombs produce”.
What is a hydrogen bomb and what can it do?A hydrogen bomb, or H-bomb, is the informal term for a thermonuclear device.
They are detonated in two stages, the first a nuclear fission reaction that then ignites a secondary nuclear fusion reaction.
Fission is another word for splitting, so the energy in a nuclear fission blast is created when the nuclei of materials like uranium or plutonium are split.