A strong, 6.6 magnitude earthquake hit northern Japan Sunday afternoon. There were no immediate reports of casualties or damage, and the government did not issue a tsunami warning.

The quake happened at 5:08 p.m. local time off the Pacific coast of Fukushima prefecture, the Japanese Meteorological Agency said.

"It is possible that the tidal level would change slightly. But there is no worry about damage," the agency said.

Some train services automatically stopped immediately after the quake, before resuming normal operations. 

-AFP/NOW Lebanon