1Statistical analysis of the February 2018 Hualien,Taiwan, China,earthquake sequence:The features of itsforeshocks,mainshocks,and aftershocksShang Yuancheng, Shi Baoping1-112Seismogenic structure analysis of the MS5.7 Songyuan, Jilin,earthquake on May 28,2018Li Yongsheng, Zhao Yi, Li Jiye, Gao Feng, Shi Wei12-233Evolution characteristics of precursory anomalies before the MS6.4 Menyuan,Qinghai,earthquake in 2016Su Weigang, Wang Peiling, Feng Lili, Ma Zhen, Zhao Yuhong24-334Dianjiang,Chongqing,MS4.4 earthquake:A possible shallow surface earthquakeHuang Shiyuan, Li Cuiping, Wang Zanjun, Gao Jian, Guo Weiying34-435Numerical and theoretical analyses of seismic wave response in non-persistent jointed rock massRen Meng, Jiang Daodong, Huang Wei, Li Xuesong44-526Regional gravity field model constructed by the least squares collocationRuan Mingming, Chen Shi, Han Jiancheng53-657Analyses on observation data of quartz horizontal pendulum tiltmeter at the seismic station Bayanhot,Inner MongoliaWu Rile66-788Hydrochemical types and origins analysis of groundwater at the seismic monitoring stations in Liaoning ProvinceSun Fengxia, Cui Yueju, Wang Haiyan, Li Jing, Du Jianguo79-909Performance and data coherence analyses of BBVS-60 and CMG-3ESPC seismometersLi Xingquan, Shao Yuping, Wu Peng, Li Sunhai, Chen Liang91-10010Design and implementation of digitalized storage information input for analog seismogramsZhu Feihong, Chai Xuchao, Wang Wenqing, Guo Qiqian, Zhang Xiaotong101-10811Correlation between shear wave velocity and buried depth of common soils in Liuzhou city of Guangxi regionQiao Feng, Bo Jingshan, Zhang Zhaopeng, Chang Chaoyu, Wang Liang109-119