Prime Minister Shinzo Abe (R) speaks to media after attending a meeting
of Security Council of Japan at his official residence in Tokyo
February 12, 2013 after reports of North Korea's possible nuclear test.
Seismic activities detected at around 0300 GMT in North Korea may be the
result of a nuclear test, Japan's top government spokesman said on
Tuesday. REUTERS/Issei Kato|
LIVE COVERAGE: http://live.reuters.com/
(Reuters) - North Korea conducted a nuclear test on Tuesday, South Korea's defence ministry said, after seismic activity measuring 4.9 magnitude was registered by the U.S. Geological Survey.
The epicentre of the seismic activity, which was only one km below the Earth's surface, was close to the North's known nuclear test site.
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Editor's Note: Map of the earthquake appears below.
View Live Ustream Radiation Detectors in a larger map