Electromagnetic coseismic effect associated with aftershock of Wenchuan M(s)8.0 earthquake
文献类型：期刊论文
| 作者 | Tang Ji1; Zhan Yan1; Wang Li-Feng1; Dong Ze-Yi1; Zhao Guo-Ze1; Xu Jian-Lang2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 53期号:3页码:526-534 |
| 关键词 | Earthquake Aftershock Coseismic Signal Seismic Wave Driven Mechanism |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.03.006 |
| 文献子类 | Article |
| 英文摘要 | The measurement of electromagnetic field at two sites in Hanwang and Chouziba for monitoring aftershock series has been done in continuous observation after the M(s)8.0 Wenchuan earthquake on May 12, 2008. The measurement was clone in two periods. Recorded data covered 35 aftershocks with magnitude more than M(s)4.0. Comparing with the seismic data recorded at Hanwang station for 15 events, the coseismic signal of aftershocks exists on all components of the magnetic and electric fields at two different sites. The EM coseismic signals arrived simultaneously with the seismic waves, but not at the origin time of the earthquake. The signal produced at the origin time of the earthquake is much smaller than coseismic signal of the waves. It can't be identified from the time series. In addition, the generation of coseismic electromagnetic signals can be explained by earthquake dynamo mechanism. Analysing and comparing the relationship between the seismic displacement and EM coseismic signals, the mechanism of EM coseismic signal generation appear to be driven by seismic waves. That is, the EM observation system set up in geomagnetic field moved with the ground motion so that the EM coseismic signals were produced. The observations of seismic displacement and electromagnetic signals verified it. |
| WOS关键词 | MAGNETIC-FIELD MEASUREMENTS ; LOMA-PRIETA EARTHQUAKE ; IZMIT EARTHQUAKE ; SIGNALS ; WAVES ; PROPAGATION ; CALIFORNIA ; EPICENTER ; JAPAN |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000276335700006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72738]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Tang Ji |
| 作者单位 | 1.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang Ji,Zhan Yan,Wang Li-Feng,et al. Electromagnetic coseismic effect associated with aftershock of Wenchuan M(s)8.0 earthquake[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(3):526-534. |
| APA | Tang Ji,Zhan Yan,Wang Li-Feng,Dong Ze-Yi,Zhao Guo-Ze,&Xu Jian-Lang.(2010).Electromagnetic coseismic effect associated with aftershock of Wenchuan M(s)8.0 earthquake.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(3),526-534. |
| MLA | Tang Ji,et al."Electromagnetic coseismic effect associated with aftershock of Wenchuan M(s)8.0 earthquake".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.3(2010):526-534. |
入库方式： OAI收割
来源：地质与地球物理研究所
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