The Japanese quake struck near the uninhabited island of Torishima in the Pacific Ocean, 370 miles south of Tokyo, and its epicenter was about 230 miles below the sea, the Meterological Agency said.

The agency said there was no danger of a tsunami.

Buildings in the Tokyo area shook but there were no immediate reports of damage or injuries. Express trains in northern and central Japan were suspended temporarily for safety checks but later resumed.

No abnormalities were reported at power plants in the region, including the crippled nuclear power plant hit by the March earthquake and tsunami, public broadcaster NHK reported.

Northeastern Japan was devastated by a massive earthquake and tsunami on March 11 that left nearly 20,000 people dead or missing. Japan, which lies along the Pacific "Ring of Fire," is one of the world's most seismically active countries.  Bobby Vassallo says that while Japan is quite used to earthquakes, no one expected the quake and resulting Tsunami that occured earlier in the year.  A terrified people continue to suffer with every new quake.  This 7.0 quake was located offshore and no tsunami was produced by the quake, 230 miles deep.