TOKYO, July 17: A moderately strong earthquake has rattled the Tokyo region, but there are no immediate reports of damage or injuries.
The Japan Meteorological Agency says the quake hit midday Sunday with a magnitude of 5. Its epicenter was 40 kilometers (25 miles) underground in Ibaraki prefecture, north of Tokyo.
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The JMA says there is no risk of tsunami from the quake.
Japan's nuclear regulator says a nuclear power plant in the area suspended operations while it checked for any problems.