An explosion has ripped through a machine room at the giant power station on the Norman coast at Flamanville this morning, injuring five workers but not resulting in any leakage of radioactivity, French authorities reassured.
The blast occurred at 10am French time in a machine room and sent smoke into the air above one of the reactors at the site causing concern to local residents.
Despite earlier reports of five casualties following an explosion at a nuclear power plant in Normandy, EDF maintains there were no casualties and that there is "no impact on the safety of the plant".
Jersey Met issued the notice, after one of its seismometers picked up an earthquake in the English Channel, of 2.6 magnitude.
The fire at the Flamanville plant was "immediately" brought under control and there was no radiation leak or injuries, operator EDF said.
The blast occurred at 10am French time in a machine room and sent smoke into the air above one of the reactors at the site.