1Synthetical analysis on earthquake tendency in the juncture area of Guangdong,Guangxi and HainanREN Zhen-huan, LUO Zhen-nuan, DING Li-qing, FENG Xiao, WU Shi-ping1-82Elastic constructive relation of ainsotropic earth mediaRUAN Ai-guo, LI Qing-he14-233Variation of comprehensive weighted information content of earthquake precursors before the MS6.2 Zhangbei earthquakeZHANG Zhao-dong, LIU Qing-guo, ZHANG Hua24-304A study on focus influence region of Tonghai earthquake in 1970CHEN Li-jun, QUAN De-hui, HU Feng-xiang, ZHOU Xia31-385Evolution process of synthetic anomalous intersection zone of C,D and Mf values before moderately strong earthquakes in South China areaWANG Zhen-zhen, MEI Wei-ping39-446Characteristics of earthquake migration in South-East coastal seismic beltWEI Bai-lin45-517Sea level change and coastal rising and descending reflected by information of tide-gauge stations in South China coastal areaXU Qi-hao, DING Li-qing, FENG Xiao52-568Correlativity of seismicity between in the trench area of Japan and in East China areaZHANG Chun, LIN Ming-zuou, JIANG Chun57-639Characteristics of seismicity in Dongting Lake areaMAO Ji-xiang, TONG Min64-7010Geological feature and activity of Laoyachen faultHOU Qing-wei, WU Yi71-7511Countermeasures of earthquake prediction in economic developed area of China coastSUN Jia-lin76-7812Inspiration to the work for earthquake disasters reduction of Guangdong province from the M7.6 Jiji earthquake,Taiw an in 1999HE Xiao-ling79-8213Some new ideas on changing institutions of seismic technical co nsultation and service to enterpriseZHANG Zhen-ya83-86