引用本文: | 王丽红, 李菊珍, 朱红彬, 李红, 岳晓媛. 河北永清4.3级地震前地磁谐波振幅比变化特征[J]. 地震科学进展, 2019, (8): 77-78. DOI: 10.3969/j.issn.0253-4975.2019.08.064 |
Citation: | Lihong Wang, Juzhen Li, Hongbin Zhu, Hong Li, Xiaoyuan Yue. The variation characteristics of geomagnetic harmonic amplitude ratio before the Yongqing M4.3 earthquark in Hebei Province[J]. Progress in Earthquake Sciences, 2019, (8): 77-78. DOI: 10.3969/j.issn.0253-4975.2019.08.064 |