On 6 January 2016 , North Korean state media announced a fourth nuclear test had been carried out successfully at the location using a hydrogen bomb . Satellite imagery captured for monitoring website 38 North between January and April 2017 suggested that a sixth nuclear test was being prepared at the site , which was detonated on 3 September 2017 . According to sources , people from the Punggye-ri nuclear test site have been banned from entering Pyongyang since the test due to the possibility of being radioactively contaminated . According to the report of defectors , about 80 % of trees died and all of the underground wells dried up in the site after the sixth nuclear test
fourth nuclear test
January 2016 North Korean nuclear test
Punggye-ri Nuclear Test Site