Around 200 hundred homes in the prefecture were without power, the utility said.
NHK said service on the Tohoku shinkansen bullet train had been halted.
"It was a really bad, long shaking from side-to-side. It was even longer than the quake last month, but at least the building here is all right," Shizue Onodera told NHK from the shop where she works in the city of Ishinomaki.
"Lots of bottles smashed on the floor," she said. "The electricity is on."
NHK footage from inside its Sendai bureau showing a plaque suspended from the ceiling shaking for about 30 seconds following the tremor. It did not report any items falling from shelves or any immediate damage.
The quake could be felt in Tokyo about 400 km south of the epicentre.