During the Fukushima nuclear disaster there was a failure of cooling systems at Fukushima Daiichi Nuclear Power Plant in Japan on March 11, 2011, and a nuclear emergency was declared. This was the first time a nuclear emergency had been declared in Japan, and 140,000 residents within 20 km of the plant were moved out. Explosions and a fire resulted in dangerous levels of radiation, resulting in a stock market collapse and panic-buying in supermarkets.