RICHMOND, Va. (AP) -- Federal officials say two nuclear reactors at the North Anna Power Station in Louisa County, Va., were automatically taken off line by safety systems around the time of the earthquake.

The Dominion-operated power plant is being run off of four emergency diesel generators, which are supplying power for critical safety equipment.

Nuclear Regulatory Commission spokesman Roger Hannah says the agency was not immediately aware of any damage at nuclear power plants in the southeast.

NRC officials are still assessing the situation.

Louisa County is about 40 miles northwest of Richmond.