Tang told Xinhua that during 26 years as a judge, she had to "make sure in each case that if somebody committed a crime, the person would be held accountable"Asked what the memorial means for her, Si澳洲28pcng pointed at herself and at reporters at a press briefing, saying that it reflects the soul of everybody with a conscience"A sound wave, which is usually generated in the event of an artificial earthquake, was not detectedThe China Earthquake Administration, of which the CENC is a part, and related departments conducted studies on the infrasonic records of the earthquake and previous quakes including those provoked by nuclear tests on the Korean PeninsulaEarlier, South Korea's weather agency said the quake is presumed to have been a natural one, the country's Yonhap news agency reported澳洲28pcThey concluded that Saturday's quake is a natural one, the seismic service said