TOKYO (Kyodo) -- An earthquake with a preliminary magnitude of 6.4 struck Ishikawa and other central Japan prefectures Tuesday, the weather agency said, but no tsunami warning was issued.

The 10:47 p.m. quake measured a lower 5 on the Japanese seismic scale of 7 in Noto, a region in Ishikawa where recovery efforts have been continuing following a devastating earthquake on New Year's Day, the Japan Meteorological Agency said. It occurred at a depth of around 10 kilometers off the western coast of the prefecture.

Bullet trains have been suspended between Toyama and Kanazawa on the Hokuriku Shinkansen line due to the quake, JR West said.

No abnormalities were reported at the Shika nuclear power plant in Ishikawa, said Hokuriku Electric Power Co.

During the quake, shaking with a seismic intensity of 1 or higher was observed across a wide area from northeastern to western Japan, according to the meteorological agency.