Yield Comparison (IMAGE) American Geophysical Union Caption Estimated explosive size of the six nuclear tests at the Punggye-ri test site on Mt. Mantap, North Korea, in units equivalent to kilotons of TNT. Black lines mark the estimated yield of the bombs and blue boxes indicate the estimate range, factoring in uncertainty. Figure based on Table 8 of the new paper. Credit AGU Usage Restrictions include credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.