This project was sponsored by the National Natural Science Foundation (50439030), and the Joint Earthquake Science Foundation (106031), China. Contribution number: 06EF3010 of the Institute of Geophys
<正>A total of 190 aftershocks with M_S≥4.0 occurred until May 31,2008,after the earthquake with M_S8.0 on May 12,2008,in Wenchuan,Sichuan,according to the Chi