1An easy approach to the long term prediction of strong earthquakes in "stable" area--taking Zhangbei earthquake as exampleDIAO Gui-ling, ZHANG Si-chang, GAO Jing-chun, WANG Qin-cai, ZHAO Ying-ping1-52Study on the magnitude problem in quick report for strong earthquake in Hebei digital telemetered seismic networkZHANG Cong-zhen, ZHAO Ming-chun, GAO Jing-chun27-313The relation of geomagnetic anomalies in Gaoyou Seismostation with earthquakes in Jiangsu and its neighboring regionJIANG Yan-lin, ZHAO Wei-hong, ZHAO Yong-hong, WANG Fu-cai, ZHANG Qian32-364Study on geomagnetic anomalies in amplitude ratio before earthquakeXIE Yong-ming, JU Yong, HAN He-ping, QIAO Zi-yun, WANG Yan-rong37-40,365Study on geomagnetic anomalies in Changli SeismostationWANG Na, WANG Yun-di, LI Yu-hua, YUE Xiu-xia, WANG Yan-rong41-456Identification of the special seismic phases in the data recorded by Shanghai seismic array with FK scan technologyWANG Xiao-ping, ZHU Yuan-qing, YU Hai-ying, QIN Hao-wen46-517Study on the relationship between seismo-magnetic effects and seismicity in west Gansu and its adjacent area with higher-order statisticsYANG Tao, LIU Qing-sheng, FU Yuan-yuan, LI Xi-jing, LEI Gong-ming52-568Reconstruction of Yangyuan Seismostation--the elimination of interference in earth resistivity observationHAN He-ping, WANG Chang-jiang, Ren Jia, KANG You-ming, WANG Rui-feng57-599Conditions and methods to ensure the operation of digital seismic precursory devices normallyZHANG Shi-min, SHU You-liang, BAI Ke-mang, LI Jian-zhang60-6210The seismic activity in Hebei and North China area in 200463-64