ROK Intelligence Believes North Korea Conducted A Failed Hydrogen Bomb Test

It is important to remember that just because the test failed doesn’t mean the North Koreans did not learn something from it to improve the bomb for a second test:

The yield, or the total energy produced by the bomb, also contradicts Pyongyang’s claim.

It is estimated that the Wednesday test generated 6 kilotons of yield, which is less than the 8-kiloton yield of the third nuclear test in 2013.

The North’s second nuclear test in 2009 had 2-kiloton yield, and the first in 2006 yielded less than 1 kiloton of total energy. A yield of 1 kiloton can be approximately compared to 1,000 tons of TNT exploding.

In an H-bomb test by the Soviet Union in 1961, the yield produced by the destructive bomb known as “Czar Bomb” was estimated at 50,000 kilotons.

One government official involved in the assessment of the test last week told the JoongAng Ilbo that the government thinks Pyongyang carried out a failed hydrogen test after reviewing various scientific data and evidence. “We have reviewed a wide range of scientific data such as the strength of the seismic event and sound wave and the detonation location before coming up with the assessment [that it was a failed H-bomb test],” said the official, who spoke on the condition of anonymity.  [Joong Ang Ilbo]

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