Powerful Earthquake Strikes Japan Off Fukushima, Tsunami Warning Issued - Live Feed

Updatge 4: According to finance minister Taro Aso there has been no major damage from the quake, while Toyota informs that it plants in northeast Japan are operating normally after the quake

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Update 3:  According to NHK, a tsunami of 1.4 meters has been recorded in Sendai Port, Miyagi.  Additional warnings were issued earlier for the area as tidal levels are rising.

Meanwhile, TEPCO is reporting that the water cooling system in Reactor 3 has been restarted after being down for 90 minutes.  No abnormalities have been detected after the restart.