Tsunami warnings lifted by meteorological agency; 5 people taken to hospital in Miyagi prefecture with injuries, none serious -
Update: Miyagi prefecture hit by a tsunami of 1 meter in height; Japan's national broadcaster NHK reports -
TOKYO (Reuters) - A strong earthquake centered off the coast of northeastern Japan shook buildings as far as Tokyo and led to a tsunami warning for coastal areas of the northeast, public broadcaster NHK said on Friday.
The earthquake had a preliminary magnitude of 7.3, the U.S. Geological Survey said, adding that there was no risk of a widespread tsunami. That was revised from an earlier estimate of 7.4.
A warning for a one-meter tsunami was issued for the coast of Miyagi Prefecture in northeastern Japan, which was hit by a devastating earthquake and tsunami in March 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.
The government declared in December that the disaster was under control, but much of the area is still free of population.
Tokyo Electric Power Co, the operator of the Fukushima nuclear plant, reported no irregularities at its nuclear plants after the latest quake.
(Reporting by Leika Kihara and Tomasz Janowski; Writing by Nick Macfie; Editing by Edmund Klamann and Ken Wills)
Japan earthquake tsunami warning issued
A tsunami warning has been issued after a 7.3 magnitude earthquake struck off Japan's eastern coast.
The epicentre of the quake was about 245km (150 miles) south-east of Kamiashi at a depth of about 36km, the US Geological Survey said.
The quake was felt in the capital Tokyo, media report.
The tsunami warning was issued for the coast of Miyagi Prefecture, which was hit by a devastating earthquake and tsunami in March 2011.
The US-based Pacific Tsunami Warning Center said there was no threat to the wider Pacific Ocean but that a tsunami could be generated that was destructive for local coastlines.
Warnings of the tsunami height varied between 50cm and 2m.
Evacuations have been ordered from some of the affected areas.
A presenter on state broadcaster NHK told viewers: "Remember last year's quake and tsunami. Call on your neighbours and flee to higher ground now!"
Buildings were reported to have swayed violently in Tokyo.
The 9.0 magnitude quake that struck on 11 March 2011 left more than 15,000 people dead and more than 3,200 missing.
That quake triggered a meltdown of fuel rods at the Fukushima nuclear plant, causing radiation leaks and mass evacuations.
The plant's operator, Tokyo Electric Power, told Agence France-Presse there were no reports of problems there this time.