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South Korea: North Korea conducts nuclear test

Toru Hanai / Reuters

Japan Meteorological Agency's earthquake and tsunami observations division director Akira Nagai points at a graph of ground motion waveform data observed in the morning in Japan during a news conference in Tokyo February 12, 2013. 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. Read the full story.