Korean seismic activity took place 50 km from prior tests -CTBTO

Sat, 23 Sep 2017 - 01:52 GMT

The nuclear proliferation watchdog CTBTO said unusual seismic activity detected in North Korea on Saturday took place around 50 km (31 miles) from previous tests.

N. Korea nuclear test 10 times more powerful than Hiroshima

Wed, 06 Sep 2017 - 11:29 GMT

Japan Wednesday again upgraded its estimated size of North Korea's latest nuclear test to a yield of around 160 kilotons