Anomalous behaviors of geomagnetic diurnal variations prior to the 2011   off the Pacific coast of Tohoku earthquake (Mw9.0)

doi:10.1016/j.jseaes.2013.08.011

CORC > 北京大学 > 地球与空间科学学院

	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).