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TOKYO (AP) -- There have been no immediate reports of injuries or damage in Japan, after a strong earthquake struck off the northeastern coast.

It's the same region that was hit by a massive earthquake and tsunami last year. One city in the region (Ishinomaki) has reported that a small tsunami of about three feet hit about 45 minutes after the quake.

The Japan Meteorological Agency says the earthquake had a preliminary magnitude of 7.3 and struck in the Pacific Ocean off the coast of Miyagi (mee-YAHG'-ee) prefecture. The epicenter was 6.2 miles beneath the seabed.

The Pacific Tsunami Warning Center says there's no risk of a widespread tsunami.

Police in Miyagi are stopping traffic in some places to check on roads.

Shortly before the earthquake struck, NHK television broke off regular programming to warn that a strong quake was due to hit. Afterward, the announcer repeatedly urged all near the coast to flee to higher ground.