Sixty-two years ago today, on November 9, 1963 (September 24, 1963 lunar calendar), Japan experienced the largest coal mine accident after the war. On November 9, 1963, a large-scale gas explosion occurred at the Miike Coal Mine in Omutian City, Fukuoka Prefecture, Japan, killing more than 40 people. This is the largest coal mine accident in Japan after the war. According to the company's announcement, the big explosion occurred at a depth of 1,500 meters in the mine. At that time, there were more than 1,200 people in the mine. The smoke column raised by the explosion was as high as 2,000 meters, and burning flames could be seen 40 kilometers away. The explosion destroyed the power equipment and all ventilation equipment of the mine, and damaged the buildings outside the mine. Three thousand workers from a nearby coal mine rushed to the site of the accident to carry out rescue and set up an emergency headquarters. The Red Flag newspaper reported that an average of two and a half miners die every day in Japan due to safety accidents.