The official Korean Central News Agency claimed it was a hydrogen bombDPRK conducted its sixth and most powerful nuclear test to date on Sept 3BOB体育官网网站入口Saturday's earthquake is likely to be a "delayed collapse earthquake", the joint report said, without elaborating on the cause of the quakeThe earthquake took place around 4:30 pm near the area of Kilju in the northeastern DPRK, just around 6 kilometers from the Punggye-ri facility where the country held its latest testThe Republic of Korea'sBOB体育官网网站入口 weather agency also assessed the quake as natural, The Associated Press reported on SundayKim was the first among the surviving "comfort women", a euphemism for the hundreds of thousands of girls and women in 13 Asia-Pacific countries or regions who were forced into sexual slavery by the Japanese army from 1930 to 1954, to go public in front of television cameras about her story in August 1991