TOKYO (Reuters) - An earthquake with a preliminary magnitude of 5.7 hit Japan's northern island of Hokkaido on Thursday, the Japan Meteorological Agency said.
The epicenter of the earthquake was in Hokkaido's south-central Iburi region, the agency said. State broadcaster NHK said no tsunami warning had been issued.
There were no immediate reports of damage.
(Reporting by Chris Gallagher and David Dolan)
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