An earthquake reported in North Korea is believed to be artificial, the South Korea Meteorological Administration said.
Earlier, the U.S. Geological Survey reported a 5.3 magnitude earthquake in North Korea.
It said the seismic activity hit 18 kilometers east north east of Sungjibaeham, North Korea, with a depth of 0 kilometers.
The South Korean military said it was currently analyzing whether North Korea had conducted a nuclear test.
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