North Anna Power Station back at full power after quake

North Anna is back to full power more than three months since the Aug. 23 earthquake. (Photo: North Anna Power Station)

RICHMOND, Va. (AP) - The first operating U.S. nuclear plant shut down because of an earthquake is back up to full power.

The Nuclear Regulatory Commission website says the two reactors at Dominion Virginia Power's North Anna Power Station were at 100 percent as of Monday morning. The units automatically shut down after the 5.8-magnitude Aug. 23 quake caused peak ground movement about twice the level for which it was designed.

Multiple inspections show the plant about 11 miles from the earthquake's epicenter didn't suffer any functional damage during the temblor.

Federal regulators gave the company the go-ahead to restart the reactors on Nov. 11.

The restart took longer than expected. But Dominion had said that delays were possible as both reactors were being restarted in phases so that safety testing could be completed.