September 2016 North Korean nuclear test
The government of North Korea conducted a nuclear detonation on 9 September 2016, the fifth since 2006, at the Punggye-ri Nuclear Test Site, approximately 50 kilometres (30 miles) northwest of Kilju City in Kilju County. == Background == North Korea's previous nuclear test was conducted 8 months earlier in January 2016 and drew sharp international condemnations.
Source: Wikipedia — September 2016 North Korean nuclear test (CC BY-SA 4.0)