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October 09, 2006
How Powerful Was the North Korean Nuke?

Posted by Dorkafork

It looks liket it was a low yield nuke. The only thing we civilians have to look at as far as empirical data goes is the Richter scale reading. If you go by the USGS value of 4.2, it's about the energy of a 2 kiloton nuclear bomb, going by a chart on this page, search for "TNT". A 4.0 has an energy equivalent of a 1 kiloton bomb. It doubles from 4.0 to 4.2 because the Richter scale is a logarithmic scale. Loosely speaking, increases of 0.2 double the kiloton equivalent and decreases of 0.2 halve it. There have been various Richter values given for the blast, from 3.58 to 4.2, which would range roughly to 250 tons to 2000 tons of TNT equivalent. And even that is only a very loose guideline. It is only the energy equivalent, and isn't a terribly accurate way to determine the explosive power of the source.

The best we can estimate from the Richter values is that it was at most a low-yield nuclear device, and it's within the realm of possibility that it was caused by a conventional explosive. Defense Tech says "No one has ever dudded their first test of a simple fission device. North Korean nuclear scientists are now officially the worst ever." This is true to an extent - they are (probably) the worst scientists to successfully build a nuclear bomb. For another point of comparison, the best estimates of the yield of the bombs dropped on HIroshima and Nagasaki have been in the 10 to 20 kiloton range. Tempted as I am to make fun of the North Koreans by, say, making an image like this:

... I also should point out that Donald Sensing is quite right to say that even if it was not merely meant as a "proof of concept", a low yield nuclear weapon is still very dangerous.

It's particularly worrisome considering just a few days before the test, North Korea's unofficial spokesman was saying things like this:

Kim is certainly in the process of achieving the long-elusive goal of neutralizing the American intervention in Korean affairs and bringing together North and South Korea under the umbrella of a confederated state.

Unlike all the previous wars Korea fought, a next war will be better called the American War or the DPRK-US War because the main theater will be the continental US, with major cities transformed into towering infernos.

Then I look at this well known photograph...

...and wonder how many of those lights in the South are going to be snuffed out.

Posted by Dorkafork at October 9, 2006 03:38 PM | TrackBack (3)

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Comments

I'm not in the slightest bit worried about DPRK ICBM's.

a Nuclear-armed Japan, South Korea, North Korea, China and Taiwan in a pretty small space scares me more than I thought possible.

I'm going to go make a bed for the refugees now.

Posted by: Foster at October 9, 2006 06:06 PM

I'm not sure, but I think there was some early speculation that one of the first Pakistan tests in '98 was a fizzle. Magnitude estimates for those tests ranged from 5.0 down to 3.6.

Posted by: Robin Roberts at October 9, 2006 10:42 PM

These guys can’t even read Abdul Khan’s schematics correctly.

Durka durka durka

.. or was it "Team America: World Police" at their best. LOL

Posted by: Neo [TypeKey Profile Page] at October 9, 2006 11:17 PM

SDB has pointed out that a plutonium bomb is somewhat trickier than a uranium bomb, and that aspects of N Korea's program which increased plutonium production at the expense of plutonium quality may have made it even more difficult.

It looks like they probably dudded the weapon.

Posted by: TallDave at October 10, 2006 12:13 PM

Khaaan! You glorious bastard, selling the DPRK the plan to the fizzling Pakistan nuke.

Posted by: pigilito at October 12, 2006 07:24 AM

The U.S. foreign policy, in regard to North Korea and virtually all other matters, is hopelessly dysfunctional. We make things worse instead of better; there are myriad unintended consequences. To read more: http://web.mac.com/ericr0283

Posted by: ericr0283 at October 13, 2006 12:07 AM

Posted by: tester at October 13, 2006 10:03 PM

Our foreign policy usually makes things worse. Iraq is the worst example, but we've exacerbated the problems with North Korea, too. For more discussion, please see my blog:
http://web.mac.com/ericr0283

Posted by: ericr0283 at October 15, 2006 10:57 PM

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