According to authorities, the reactor vessel is not damaged, the radiation levels began to decline.
Meanwhile, in Fukushima Prefecture itself there was another tremor, told BBC BBC. The magnitude of the earthquake reached a six-.
According to Kyodo news agency, the employee suffered four nuclear power plants, they are in the minds and their lives are out of danger. 
Previously, Japan had announced a state of emergency at nuclear power plants ...
The earthquake disrupted power supply back-up generators that provide cooling plant, after which the reactor began to overheat and the threat of an uncontrolled meltdown of fuel in the core of power plants.
Prime Minister Naoto Kan declared a state of emergency in the area of the accident, residents were evacuated in the event of an uncontrolled nuclear reaction.
Prime Minister personally came to the prefecture of Fukushima in a helicopter. Evacuation zone extended to the territory within a radius of 20 km from each of the two nuclear power plants.
Power stations are located at a distance of 11 km from each other.
level of risk.