Water leakage accident in Wangjialing Coal Mine of Huajin Coking Coal Company: Dalian oil pipeline explosion; A tower crane collapsed at the construction site of the book complex building of Shangluo Vocational and Technical College in Shangluo City, Shaanxi Province, killing three people. The pipe trench collapsed in the road widening and reconstruction project of Heping Road, Wulanhua Town, Siziwangqi, Wulanchabu City, Inner Mongolia Autonomous Region, killing three people; The tower crane at a construction site in Dandong suddenly collapsed; Scaffolding collapsed at the construction site of Beitang Culture and Education Center in Wuxi City, Jiangsu Province, killing three people. Wenchuan, Sichuan, 5 12, Wang Jiayu mine was flooded, and an earthquake occurred in Qingdao.