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Originally posted by woogleuk
reply to post by Dustytoad
So about 6000 tons?
Would that be possible?
There has been gaps of several years between "tests", although most likely the time needed to produced enough enriched material and create "the bomb", could they have stockpiled that much conventional explosives in that time?
Originally posted by spark9576
I guess my question is, how do they know if it's an artificial earthquake?
Originally posted by Dustytoad
@Bedlam.. Didn't even consider that one.. hmm.
Originally posted by woogleuk
reply to post by Dustytoad
Just been reading up on how much conventional explosives would be needed, and it turns out that only 43 tons would be needed for a 4.3, and 480 tons for a 5.
Although I think that is based on an above ground explosion, from what I can gather from the information, not much more would be needed for similar results underground.
Source
Seismic activity
Indications that the test had taken place first emerged when U.S. seismologists reported a disturbance on Tuesday morning in North Korea centered near the site of the secretive regime's two previous atomic blasts.
The area around the epicenter of the tremor in northeastern North Korea has little or no history of earthquakes or natural seismic hazards, according to U.S. Geological Survey maps.
The disturbance reported Tuesday had a magnitude of 5.1 -- upgraded from an initial estimate of 4.9 -- took place at a depth of about 1 kilometer, the USGS said.
Kim Min-seok, a spokesman for the South Korean defense ministry, said the magnitude of the "artificial tremor" suggested the size of the blast could be in the order of 6 to 7 kilotons, more powerful than the North's two prior nuclear tests.
That calculation, though, was based on the USGS's initial estimate of a 4.9-magnitude seismic disturbance, he said. A 5.1-magnitude tremor could indicate a 10 kiloton explosion.
Originally posted by Bedlam
Originally posted by Cosmic4life
Actually you are wrong.
NK has very small amounts of Plutonium and lots of Uranium.
The Fast breeder Reactor at Yongbyon has not yet been completed.....Uranium however is much more abundant and a lot easier for NK to enrich to weapons grade in secret.
And lastly of course NK does have Uranium deposits that it is actively mining.
No, I'm really not. You don't need (nor want) a fast breeder design to make plutonium for weapons use.
They extracted the plutonium that was in the fuel load at Yongbyon research reactor, and got enough for six to seven weapons some years back.
They didn't start their uranium separation work until about 2009, and it's not fully operational.
Originally posted by woogleuk
reply to post by Dustytoad
I do apologise, the number I seen earlier for this blast was 4.8.
09.04 Even Iran has now disapproved of North Korea's nuclear test - remarkable considering its own alleged ambitions in that area.
BREAKING: North Korean Foreign Ministry warns of unspecified 'second and third measures' after nuke test