1Relocation and source characteristics of the 2019 Changning MS6.0 earthquake sequenceXu Zhiguo, Liang Shanshan, Sheng Shuzhong, Zhang Guangwei, Zou Liye, Zhou Yuanze377-3912Seismogenic structure of Yongqing MS4.3 and Langfang MS3.0 earthquakesLi He, Dong Yibing, Wang Yixi, Wu Boyang, Peng Zhao392-4053The electrical structure beneath the Yarlung Zangbo suture zone in southern TibetXu Xinxue, Chen Yukun, Gao Wuping, Yuan Hang, Yan Chengguo, Lei Qing, Zheng Jun406-4184Correlation characteristics of the geoelectric field with multi-azimuth and multi-pole distance for the same fieldWang Weiming, Tan Dacheng419-4345Inversion method and application of seismic intensity attenuation parameters based on genetic algorithmHe Yicheng, Peng Xiaobo, Xia Wenjun, Huo zhuqing, Chen Nan, Xu Nian435-4466Isoseismal line of Sichuan Changning MS6.0 earthquake in 2019 based on precisely located aftershocks sequenceXu Zhishuang, Liu Jie, Zheng Tongyan, Ren Jing, Chen Yahui, Li Xiaoli447-4567Influence of rupture velocity of the directly-beneath fault on the basin seismic effectHan Tiancheng, Yu Yanyan, Ding Haiping457-4708Estimation and adjustment of eigenperiod of response spectrum of near-fault pulse-type ground motionYu Ruifang, Wang Shaoqing, Chen Kexu, Wu Jingwu, Li Bangwu471-4819Influence of permanent displacement of ground motion on seismic response of structuresXu Guolin, Qi Haiao, Zhang Yafei, Bai Yashuang482-49010Supplementary investigation of historical earthquakes in southern JiangxiDeng Hui, Dong Feifei491-50311The centroid moment tensor solution of the 23 June 2020 MW7.4 Mexico earthquakeZhang Zhe, Liang Hao, Xu LishengResearch Note504-508