jgg     2008 28 (3):  129-131    ISSN: 0412-1961  CN: 21-1139/TG GRAVITY DISTURBANCE BEFORE WENCHUAN Ms8.0 EARTHQUAKE Hao Xiaoguang; Hu Xiaogang; Xu Houze; Zhong Min; Fang Jian; Hao Xinghua; Liu Min; Liu Genyou; and Xue Huaiping Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null