7.3 quake hits north Japan, tsunami risk receding

A powerful 7.3 magnitude earthquake struck off the coast of Fukushima in northern Japan on Wednesday evening, triggering a tsunami advisory and plunging more than 2 million homes in the Tokyo area into darkness.

 Footage showed signal and road lights going out on Tokyo's streets. The Pacific Tsunami Warning Center said there was no longer a tsunami threat though the Japan Meteorological Agency kept its low risk advisory in place. NHK national television said tsunami waves of 20 centimeters already reached shore in Ishinomaki, about 390 kilometers  northeast of Tokyo.