Evaluation of seismo-electric anomalies using magnetic data in Taiwan

NCUIR > College of Earth Sciences > DEPARTMENT OF SPACE SCIENCE AND ENGINEERING > journal & Dissertation > Item 987654321/102186

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/102186

Title:	Evaluation of seismo-electric anomalies using magnetic data in Taiwan
Authors:	劉正彥;Chen, C. H.;Hsu, H. L.;Wen, S.;Yeh, T. K.;Chang, F. Y.;Wang, C. H.;Liu, J. Y.;Sun, Y. Y.;Hattori, K.;Yen, H. Y.;Han, P.
Contributors:	地球科學學院太空科學與工程學系
Keywords:	Analysis;Coastal environments;Earthquakes;Electrical conductivity;Electromagnetic radiation;Electromagnetic waves;Electromagnetism;Environmental sciences;Environmental technology. Sanitary engineering;G;GE1-350;Geography. Anthropology. Recreation;Geology;Mathematical analysis;Monitors;QE1-996.5;Seismic activity;Seismic phenomena;TD1-1066;Vectors (mathematics)
Date:	2013-03-15
Issue Date:	2026-04-23 11:03:51 (UTC+8)
Publisher:	European Geosciences Union;Katlenburg-Lindau: Copernicus Publications
Abstract:	摘要： The Parkinson vectors derived from 3-component geomagnetic data via the magnetic transfer function are discussed with respect to epicentre locations and hypocentre depths of 16 earthquakes (M ≥ 5.5) in Taiwan during a period of 2002–2005. To find out whether electric conductivity changes would happen particularly in the seismoactive depth ranges, i.e. in the vicinity of the earthquake foci, the frequency dependent penetration depth of the electromagnetic waves (skin effect) is taken into account. The background distributions involving the general conductivity structure and the coast effect at 20 particular depths are constructed using the Parkinson vectors during the entire study period. The background distributions are subtracted from the time-varying monitor distributions, which are computed using the Parkinson vectors within the 15-day moving window, to remove responses of the coast effect and underlying conductivity structure. Anomalous depth sections are identified by deviating distributions and agree with the hypocentre depths of 15 thrust and/or strike-slip earthquakes with only one exception of a normal fault event. 出版者： Katlenburg-Lindau: Copernicus Publications 出版日期： 2013-03-07 出處： Natural Hazards and Earth System Sciences, 2013-03, Vol.13 (3), p.597-604 資源來源： Agricultural & Environmental Science Collection 版權： COPYRIGHT 2013 Copernicus GmbH 版權： Copyright Copernicus GmbH 2013 識別號： ISSN: 1684-9981 識別號： ISSN: 1561-8633 識別號： EISSN: 1684-9981 識別號： DOI: 10.5194/nhess-13-597-2013
Appears in Collections:	[DEPARTMENT OF SPACE SCIENCE AND ENGINEERING] journal & Dissertation

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