Scientists have used satellite imagery to discover that a nuclear test in North Korea was so powerful it literally moved a mountain. Seismic sensors registered the effects of the nuclear test twice, firstly as a 6.3 magnitude earthquake which was shortly followed by a 4.1 magnitude quake. Scroll down for videoScientists have used satellite imagery to discover that a nuclear test in North Korea was so powerful it literally moved a mountain. In the study, its authors write: 'On 3 September, 2017, two seismic events separated by ~8.5 min were detected in the North Korea's Punggye-ri nuclear test site. Kim Jong-un only agreed to freeze his missile tests because his underground nuclear test site has collapsed, Chinese experts suggested on Wednesday.

Source: Daily Mail May 11, 2018 16:41 UTC