Because of changes in land crust cracking. "Later Han Ji Dili": "Autumn in July Otomi, easy sun to crack." "History of Song Dynasty China has spread to the second summer under the": "﹝ ﹞ 10 years Shaoxing March, earthquake, more than more than month ; to crack, Quan-Yong out of black sand. "Ming Tian Rucheng" West Lake Chi Cong Lane Commission on the other ":" Hongzhi five years on June 24, wind, water, fat, Xishan, Shanbengdilie, West Lake overflow. " |