A strong earthquake has jolted northeastern Japan.
The Japan Meteorological Agency says the earthquake with a preliminary magnitude of 7.3 struck in the Pacific Ocean off the coast of Miyagi prefecture at 5:18 p.m. (0818 GMT) Friday. The epicenter was 10 kilometers (6.2 miles) beneath the seabed.
Buildings in Tokyo swayed for at least several minutes.
The epicentre of the quake was about 245km (153 miles) south-east of Kamiashi at a depth of about 36km, the US Geological Survey said.
The tremor struck in the Pacific Ocean at a depth of 23 miles, and the epicentre was 285 miles from the capital.
An alert for a one-metre high tsunami was issued for the coast of Miyagi Prefecture in northeastern Japan, which was hit by a devastating earthquake and tsunami on March 11, 2011.
That quake triggered fuel-rod meltdowns at the Fukushima nuclear plant, causing radiation leakage, contamination of food and water and mass evacuations in the world's worst nuclear crisis since Chernobyl in 1986.
Tokyo Electric Power Co, the operator of the Fukushima nuclear plant, reported no irregularities at its nuclear plants after the latest quake.
The Pacific Tsunami Warning Centere says no risk of widespread Tsunami from quake off Japan at this time. Based on all available data there is not threat to Hawaii.
TSUNAMI BULLETIN NUMBER 001 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 0825Z 07 DEC 2012 THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA... WASHINGTON...OREGON AND CALIFORNIA. ... TSUNAMI INFORMATION BULLETIN ... THIS BULLETIN IS FOR INFORMATION ONLY. THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS REPORTED BY THE JAPAN METEOROLOGICAL AGENCY. ORIGIN TIME - 0818Z 07 DEC 2012 COORDINATES - 37.7 NORTH 144.6 EAST DEPTH - 33 KM LOCATION - OFF THE EAST COAST OF HONSHU JAPAN MAGNITUDE - 7.3 EVALUATION NO DESTRUCTIVE WIDESPREAD TSUNAMI THREAT EXISTS BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA. HOWEVER - EARTHQUAKES OF THIS SIZE SOMETIMES GENERATE LOCAL TSUNAMIS THAT CAN BE DESTRUCTIVE ALONG COASTS LOCATED WITHIN A HUNDRED KILOMETERS OF THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION OF THE EPICENTER SHOULD BE AWARE OF THIS POSSIBILITY AND TAKE APPROPRIATE ACTION. THIS WILL BE THE ONLY BULLETIN ISSUED FOR THIS EVENT UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE. THE JAPAN METEOROLOGICAL AGENCY MAY ALSO ISSUE TSUNAMI MESSAGES FOR THIS EVENT TO COUNTRIES IN THE NORTHWEST PACIFIC AND SOUTH CHINA SEA REGION. IN CASE OF CONFLICTING INFORMATION... THE MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY. THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.