• 责任者：Zhang Xiaotao （Institute of Earthquake Sciences ; CEA ; Beijing 100036 ; China） ; Zhang Yongxian
• 刊名：Earthquake
• 出版年：2009
• 卷期：29(2)
• 关键词：地震前兆 ; precursor ; 汶川地震2008 ; Wenchuan earthquake 2008 ; 四川 ; Sichuan Province
• 页码：p.104-117
• 图表：6 illus., 2 tables, 14 refs.
• 分类号：0500
• issnNo：ISSN1000-3274
• isbnNo：CN11-1893/P

This paper collects and analyzes the macroscopic anomalies before and after the May 12, 2008 Wenchuan M8.0 earthquake, Sichuan Province. The credible anomalies occurred from February 1 to June 10,2008 were treated as macroscopic anomalies, then, space-time distribution of the macroscopic anomalies were studied. The results indicate that, in time distribution, the number of macroscopic anomalies reached peak value before the earthquake, and two peak values appeared after the earthquake.