The US Geological Survey said the epicentre of the quake was in the northeast of the country, some 50 kilometres (30 miles) northwest of Kilju city, placing it right next to the Punggye-ri nuclear test site.

	AFP

5.1 magnitude quake detected close to North Korea nuclear test site

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Nongluck is a senior economic journalist covering the macroeconomics, real estate, and corporate investment strategies driving growth across Thailand and Southeast Asia.

5.1 magnitude quake detected close to North Korea nuclear test site

SEOUL - A 5.1 magnitude tremor was detected close to North Korea's nuclear test site on Wednesday, triggering concerns that Pyongyang had conducted a fresh atomic explosion.

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