“We call it ‘talking the roof off.’ If the mountain collapses and the hole is exposed, it will let out many bad things,” Wang Naiyan, a researcher for China’s nuclear weapons program, told the SCMP.

While mountains don’t usually implode by happenstance, just one more nuclear test could cause the peak at the Punggye-ri nuclear test site to crumble, researchers at the University of Science and Technology of China in Hefei told the Hong Kong-based news outlet.

“The North Korean government should stop the tests as they pose a huge threat not only to North Korea but to other countries, especially China,” Wang said.

On Sunday, the DPRK tested what they say is a....REST HERE