Kim Jong-un threatens US with H-bomb 100x stronger than America's nukes

NORTH Korea has boasted it could detonate a hydrogen bomb hundreds of times more powerful than any nuclear weapon in the US.

NUKE: North Korean leader Kim Jong-un watches a military test surrounded by generals

The US and South Korea have rubbished Kim Jong-un's claims to have successfully tested an H-bomb earlier this month – saying the blast was too small.

But the trigger-happy Commies insist it WAS an H-bomb – and explained the apparently small explosion by claiming they can control the power of their nukes.

ROCKET: A North Korean Taepodong-class missile is displayed during a military parade

South Korea estimates the Pyongyang's January 6 nuclear test measured about 6 kilotons.

H-bombs typically produce dozens – if not hundreds – of kilotons.

Experts in Seoul and Washington now believe the North tested a standard atomic weapon or "boosted fission" bomb – which uses a small amount of nuclear fusion to increase the power of the blast.

ROCKET MAN: Experts fear North Korea could launch a long-range missile within days

But the North has hit back.

In its latest propaganda missive it said: "If our territory were as large as that of the United States and others, we could detonate a hydrogen bomb which was tens or hundreds of times more powerful than that of their H-bombs."

The UN is still working on a response to the January 6 nuclear test.

But Kim Jong-un – who has already threatened to wipe out the US with a nuclear strike – appears unconcerned by its isolation.