The nuclear power plant closest to the epicenter of the massive earthquake that rocked japan in 2011 resumed operation, a major milestone in the country’s bid to revive its use of atomic energy.

Unit 2 at the Onagawa Nuclear Power Plant in Miyagi Prefecture was in the process of being brought back online following maintenance when the Tohoku earthquake and tsunami wreaked havoc more than 13 years ago. It incurred some damage, but avoided the disaster experienced at the Fukushima Dai-ichi Nuclear Power Plant, further south.

Tohoku Electric Power restarted the unit at Onagawa on Tuesday evening local time, according to a spokesperson. Stringent restart protocols in the wake of the Fukushima meltdown are the reason it’s been offline for so long.