jgg     2010 30 (Supp.1):  22-25    ISSN: 0412-1961  CN: 21-1139/TG PRIMARY COMPARATIVE ANALYSIS OF MAGNITUDEDEVIATION IN THREE GORGES AREA Wei Guichun; Chen Junhua; Shen Xuelin; and Chen Yuanyuan Institute of Seismology, CEA, Wuhan 430071 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null