Tokyo - An earthquake with a strength of 7.2 on the Richter scale rocked the area off the coast of northeastern Japan on Wednesday, and potential tsunamis that were announced early warning, according to Japan Meteorological Agency (JMA).
Tsunami warnings as high as 50 centimeters notified to the northeastern region of Japan, a report by public broadcaster NHK.
The quake's epicenter was 10 kilometers below the earth's surface, off the coast of Aomori Prefecture, NHK said.
Tohoku Electric Power Company declared Onagawa nuclear power plant is operating normally after the initial quake. Meanwhile, Tokyo Electric Power also said there was no effect on its power plants in the region.
Earthquakes are common in Japan, one of which is seismically the most active in the world. The country was facing 20 percent of earthquakes with the power of 6.0 on the Richter scale or more of the world.
