@CNN: North Korea’s sixth nuclear test in September 2017 was so powerful that it’s still triggering earthquakes more than a year later https://t.co/KyntpmApWB https://t.co/foVfrIVGv5
North Korea's sixth nuclear test in September 2017 was so powerful that it's still triggering earthquakes more than a year later https://t.co/KyntpmApWB pic.twitter.com/foVfrIVGv5
— CNN (@CNN) January 2, 2019