DOI: 10.1007/s00531-013-0970-9
Scopus记录号: 2-s2.0-84894241842
论文题名: Aspects on the origin of the precursory magnetic anomalies of the Mw 6.4 Aquila earthquake
作者: Dologlou E.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期: 2 起始页码: 397
结束页码: 400
语种: 英语
英文关键词: Aquila earthquake
; DFA exponent
; Magnetic field variations
; Seismic electric signal (SES)
英文摘要: An anomalous behaviour of the scaling exponent derived from the detrended fluctuation analysis (DFA) of the time series of low frequency variations of the horizontal and vertical magnetic field components has been recently reported as being observed 2 months prior to the Mw 6.3 earthquake on 6 April 2009, close to L'Aquila city, Italy. Here, we suggest a possible physical explanation of this effect based on the experience from similar measurements in Greece. In particular, for example, we compare these observations associated with Aquila earthquake with the ones of the Mw 6.6 earthquake on 13 May 1995 at Kozani-Grevena, Greece where both magnetic field variations and seismic electric signals (SES) were recorded. Almost 1 month before the latter earthquake, anomalous variations in both electric and magnetic field were detected, the time series of that were analysed by means of DFA and led to an exponent close to unity. Similarly, the calculated DFA exponent for the Aquila earthquake time series of the anomalous magnetic field variations 2 months before the main shock was also found close to unity. These results could imply that in the case of Aquila, according to the Maxwell's laws, one should expect to observe simultaneously with the magnetic signal an associated SES activity, provided that an appropriate station to monitoring the earth's electric field variations in the same area was available. Hence, it seems that similar underlying non-linear dynamic processes in mechanical and as well as electromagnetic sense, with features of criticality, dominated in both pre-focal areas. © 2013 Springer-Verlag Berlin Heidelberg. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894241842&doi=10.1007%2fs00531-013-0970-9&partnerID=40&md5=83e48509a81050304c6c93a67f665b9a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70444
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Solid State Section, Department of Physics, University of Athens, Panepistimiozpolis, Zografou, 157 84 Athens, Greece
Recommended Citation:
Dologlou E.. Aspects on the origin of the precursory magnetic anomalies of the Mw 6.4 Aquila earthquake[J]. International Journal of Earth Sciences,2014-01-01,103(2)