A massive earthquake and tsunami in March last year caused reactor meltdowns at the Fukushima Daiichi plant
Tokyo Electric Power Co. (TEPCO)'s tsunami-crippled Fukushima Daiichi nuclear power plant in Okuma, Fukushima prefecture, February 2012. Japan may go "momentarily" without nuclear power next month when the only one reactor still in operation shuts down for maintenance work, the country's industry minister warned.