An earthquake with a preliminary magnitude of 6.2 struck off Japan's northernmost main island of Hokkaido on Sunday, the weather agency said, with no tsunami warning issued.

The quake registered a lower 5 on the country's seismic intensity scale of 7 in Chitose and other parts on the southern coast of the prefecture around 6:55 p.m., the Japan Meteorological Agency said. Sapporo, Hakodate and some other cities marked 4 on the scale.

It occurred at a depth of 140 kilometers in waters off Urakawa, southern Hokkaido, and also shook a wider region in northeastern Japan.

Hokkaido Electric Power Co. said no abnormalities were detected at its Tomari nuclear power plant.

==Kyodo

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