The U.S. Nuclear Regulatory Commission is sending a team of experts to a nuclear power plant in the state of Virginia, that was hit by a magnitude 5.9 earthquake on August 23.

The North Anna nuclear power station is about 20km (12 miles) away from the epicenter of the strongest quake to hit the east coast state in 114 years.

The NRC now admits the plant had experienced tremors that exceeded the level it was designed to withstand.