1Analysis of Seismogenic Structure Mechanism of the Nanao Earthquake in 1918PENG Chengguang, LI Yungui, WU Mingbin1-142Strain Data and Earthquake Short Impending Anomaly Characteristics Analysis of Xiaotao Seismic StationQUAN Jianjun, LIU Shuilian, ZHENG Yongtong, CHEN Meimei, LIN Huiqing, LIU Licheng, ZHENG Zhihong, LAI Jianshen15-223Verification of the Seismometer's Azimuth of Guangdong Seismic Stations in the"10th Five-Year Plan"CHEN Jiantao, XIE Jianbo, LU Zijin23-294The Two Sequences Analytical Method of Known Epicenter Information in South ChinaZHANG Hui, ZHENG Ping, SHEN Fanluan30-345Preliminary Study on Geomagnetic Survey Results of Hong Kong International AirportQIU Jie, WANG Jiange, XU Dawei, LU Jinghui, WANG Liwei, ZHENG Shengtan, YANG Xiangdong35-406Preliminary Study on Characteristics of Strong Earthquake's Migration in Main Block of China,Based on Projection Line of Strong Earthquakes MigrationCHAI Rongjian, CHEN Daqing41-477Some Reflections on the Utility of the Probability Safety Analysis (PSA) to the Seismic Safety Assessment (SSA) of the Nuclear Power Plant SiteGONG Huiling, WANG Ran, DU Long48-528The Drift Characteristics of CG-5 Gravimete in the Flow Observation of Hainan IslandHU Jinqiao, LI Sheng, ZHANG Fan53-579Data Security Strategy of Seismic Observation NetworkWENG Shaolin58-6010The Reconstruction of the Xiaodian Site in Tanlu Cross-Fault Zone and Quantitative Analysis of Point StabilityDAI Xianpeng, WU Xiaofeng, SONG Hao, ZHANG Hui, FAN Wenhua, GONG Jie61-6511Comparative Analysis of Interference Factors of GM4 and FHD in Longyan Seismic StationZHENG Yongtong, ZHANG Nianming, LIU Qishou, QUAN Jianjun, ZHENG Jianzhi66-7412Analysis of Underground Water Level Observation Data and Monitoring Efficiency Evaluation of Earthquake Precursor of Yongan Well after Digital ReconstructionCHEN Meimei, LIU Shuilian, QUAN Jianjun, LIN Huiqing75-8213Study on the Correlation Between Abnormal Groundwater Observation and Earthquake in Shantou Seismic StationWENG Shaolin83-8714A Comparative Analysis of the Synchronous Measurement of Radon Content with Two Types of Intelligent Digital Radon-detectors, SD-3A and DDL-1QI Weiluo, YU Qingkun, WANG Jie88-9315The Realization of Sand Strain Data Processing SystemLI Yiwei, HE Xingyuan, WU Jinbo, CAI Peirui, CHEN Wei, SONG Chao94-9816The Application of Geomagnetic Load-unloading Response Ratio in Gansu Province and Its Surrounding AreasWANG jingbo, HAN Ying, YANG Hongjing99-10417Supervision Work Characteristics of Earthquake Warning Station Construction in Pearl River Delta RegionLIN Wei, JIANG Xiuqin, YE Chunming, CHEN Jiantao105-11218Analysis of Influence Factors of Well Water Dynamics in No. Three WellLIANG Ying, ZHANG Lifeng113-12019Analysis on Coordination Characteristics of Water Level and Water Temperature Observation Data in Kunming CityZUO Linchang121-12520Analysis on Coseismic Response Characteristics and Seismic Recording Capacity of Water Level of Taodong Well in Yongchun, FujianQIN Shuanglong, LIAO Lixia, HONG Xuyu, ZHAO Wenbo126-132 