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Punggye-ri Nuclear Test Site

Study: North Korean Mountain Used to Test Nuclear Weapons Sank Nearly Two Feet

A group of international scientists published a study on Thursday concluding that Mount Mantap, the location of North Korea’s nuclear test site, has sunk at least half a meter (1.6 feet) and widened by 3.5 meters (11.4 feet) in the aftermath of the nation’s latest nuclear test in September.

The last five of Pyongyang's six nuclear tests have all been carried out at the Punggye-ri nuclear test site under Mount Mantap, in the north-west of the country, seen in this image acquired on September 1, 2017, and courtesy of www.Planet.com