A magnitude 3.4 tremor was detected in North Korea, China’s earthquake agency said, while a South Korean weather agency said it was not triggered artificially.
The tremor occurred at 4.29 p.m. China time and had a depth of zero meters, the China Earthquake Networks Center said in a statement, adding it was a suspected blast. South Korea’s weather agency said in a statement on its website that the tremor was a natural occurrence, though it hit close to the area where North Korea conducts nuclear tests.
North Korea detonated its sixth and most powerful nuclear weapon earlier this month at its underground Punggye-ri site northeast of Pyongyang, causing a quake with a magnitude of around 6.3. The move escalated tensions with the U.S. and North Korea’s neighbors, and this week its foreign minister said the regime’s options included testing a hydrogen bomb in the Pacific Ocean.
There have been concerns about the stability of the …
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