1Analysis on the interaction between the focal fault of Hongtong and Linfen earthquake and its earthquake tendencyDIAO Gui-linga, HU Xin-liang, ZHANG Xiao, LI Guang, MA Li-jun, WANG Cheng-liang, LU Zheng1-42Analysis on horizontal deformation of Shanxi rift zone in recent yearsZHANG Feng-shuang, YANG Guo-hua, HAN Yue-ping, SHEN Wu-chun, WANG Li5-93Focal parameters of medium and small earthquakes in Midwest area of Inner MongoliaLIU Fang, ZHU Zhi-yong10-144Characteristics of the air pressure variation in Zhouzhi Well and its relation with earthquakesWANG Xin, YANG Xu-sheng, ZHAO Xiao-mao, Zhang Guo-qiang15-195Characteristics of the CO2 anomaly in Huailai Seismostation and its relation with earthquakesZHANG Xiu-ping, WANG Yue-feng, MA Li-jun, ZHANG Yan-qing, WANG Rui-feng, REN Jia20-236Overview on the action of subsurface fluid to seismic precursorLI Min24-287Study on the characteristics of coda wave attenuation in Handan-Xingtai areaZHANG Xiao-tao, MA Guang-qing, SUN Qing, HAN Li-ping, LU Feng-zhang, SONG Zeng-liang29-328Characteristics of earthquake activity in Qingdao and its adjacent regionZHANG Ling, ZHU Jian-ya, XU Ping, HE Jun, LIU Yuan-sheng33-359The application of artificial neural network on the estimation of potential earthquake risk regionLI Qiang, XU Ge, YANG Cai-xia36-4110Software for digital seismic waveform analysisWU An-xu, SONG Zhi-ping, LIN Xiang-dong, ZHANG Wei-xin, SU Xiao-fei, ZHANG Wen-juan, MU Hui-yong, LU Ya-jun, LI Ping-an42-45,1911Software for management of Tianjin Seismic Precursor Station NetworkWANG Jian-guo, NIE Yong-an, DONG Hong-jun, SHAO Yong-xin, WU Qiang46-5012Analysis on the ground motion noise of substations in Hebei Digital Seismic NetworkSUN Qing, ZHANG Xin-dong, ZHANG Shuang-feng, YAN Jun-gang51-5413Locating stability of interactive processing system for digital seismic station network in Capital areaLIU Li, MAO Guo-liang, JI Ai-dong, ZHAO Ying-ping, LI Jin-jin55-64