Tokyo, Earthquake magnitude 7.4 Japan rocked. Bureau of Meteorology, Climatology, and Geophysics (BMKG) Japan, Miyagi urged residents to evacuate to a safer place. "Tsunami warning has been issued for Miyagi prefecture. Are suggested for residents away from the coast and areas dangerous, "he wrote BMKG site Japan or Japan Meteorogical Agency (JMA). The quake occurred at about 23:32 time local, or at around 21:32 pm. Epicenter located at a depth of 40 Km below sea level. The quake's epicenter was off the coast of Miyagi. JMA also estimate the effects of the tsunami will occurred in the prefecture of Aomori, Iwate, Fukushima and Ibaraki, just not as big in Miyagi.