North Korea quake 9.8 times more powerful than 5th: South Korean media
Neighbouring country claims it to be the 'most powerful' artificial quake following a test
 "North Korea quake 9.8 times more powerful than 5th: South Korean media")
The "artificial quake" in North Korea on Sunday, thought to be its sixth nuclear test, was 9.8 times more powerful than the tremor from Pyongyang's fifth test, the South's Yonhap news agency reported citing the state weather agency.
It was "not only 9.8 times more powerful than the nuclear test conducted in September last year, but it is the most powerful", an official at the Korea Meteorological Administration told Yonhap.
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