A quake with a preliminary magnitude of 4.5 jolted Iwate and Miyagi prefectures Saturday morning, the Japan Meteorological Agency said.
There were no immediate reports of injuries or damage from the 8:11 a.m. quake.
It measured 3 on the Japanese seismic scale of 7 in Ofunato and Rikuzentakata in Iwate Prefecture and Ishinomaki in Miyagi Prefecture.