There was no reported damge to the Onagawa nuclear power plant in Miyagi, near the epicenter.

FORBES: News Wrap: Japan Lifts Tsunami Warning Following 6.7 Quake

Onagawa's plant was high enough above sea level to survive the tsunami without enormous damage.

ECONOMIST: Banyan

During the earthquake, the ground level dropped by a metre, while the tsunami destroyed Onagawa's sea wall.

ECONOMIST: Banyan

Hokuriku Electric said on Friday all three reactors at its Onagawa nuclear plant on the north-east coast shut down automatically after the quake.

BBC: Japan quake: Nuclear closures to cause power shortages