Anomalous behaviors of geomagnetic diurnal variations prior to the 2011 off the Pacific coast of Tohoku earthquake (Mw9.0) | |
Xu, Guangjing ; Han, Peng ; Huang, Qinghua ; Hattori, Katsumi ; Febriani, Febty ; Yamaguchi, Hiroki | |
刊名 | journal of asian earth sciences |
2013 | |
关键词 | Ultra-low-frequency (ULF) seismo-magnetic phenomena Geomagnetic diurnal variation The 2011 off the Pacific coast of Tohoku earthquake (Mw9.0) SEISMIC ELECTROMAGNETIC SIGNALS MAGNETIC-FIELD MEASUREMENTS M(S)8.0 WENCHUAN EARTHQUAKE NAIRIKU HOKUBU EARTHQUAKE 1995 KOBE EARTHQUAKE NUMERICAL-SIMULATION ELECTRIC SIGNAL GUAM EARTHQUAKE JAPAN TAIWAN |
DOI | 10.1016/j.jseaes.2013.08.011 |
英文摘要 | There have been many reports on ultra-low-frequency (ULF) electromagnetic phenomena associated with earthquakes in a very wide frequency range. In this study, unusual behaviors of geomagnetic diurnal variations prior to the 2011 off the Pacific coast of Tohoku earthquake (Mw9.0) have been reported. Ratios of diurnal variation range between the target station Esashi (ESA) which is about 135 km from the epicenter and the remote reference station Kakioka (KAK) about 302 km distant to the epicenter have been computed. The results of 10-day running mean of the ratios showed a clear anomaly exceeding the statistical threshold in the vertical component about 2 months before the mega event. This anomaly is unique over a 3-year background, and the further stochastic test indicates that this anomaly is unlikely a random anomaly, which is highly suggestive of correlation with the mega. event. The original records of geomagnetic fields of the ESA station also exhibit continuous anomalous behaviors for about 10 days in the vertical component approximate 2 months prior to the Mw9.0 earthquake. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.; Geosciences, Multidisciplinary; SCI(E); 14; ARTICLE; ,SI; 59-65; 77 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/155594] |
专题 | 地球与空间科学学院 |
推荐引用方式 GB/T 7714 | Xu, Guangjing,Han, Peng,Huang, Qinghua,et al. Anomalous behaviors of geomagnetic diurnal variations prior to the 2011 off the Pacific coast of Tohoku earthquake (Mw9.0)[J]. journal of asian earth sciences,2013. |
APA | Xu, Guangjing,Han, Peng,Huang, Qinghua,Hattori, Katsumi,Febriani, Febty,&Yamaguchi, Hiroki.(2013).Anomalous behaviors of geomagnetic diurnal variations prior to the 2011 off the Pacific coast of Tohoku earthquake (Mw9.0).journal of asian earth sciences. |
MLA | Xu, Guangjing,et al."Anomalous behaviors of geomagnetic diurnal variations prior to the 2011 off the Pacific coast of Tohoku earthquake (Mw9.0)".journal of asian earth sciences (2013). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论