Credit Toru Hanai, via 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 [4pm yesterday] in North Korea may be the result of a nuclear test, Japan’s top government spokesman said on Tuesday. — NBC News
