Pre-seismic geomagnetic anomaly and earthquake location

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题名:	Pre-seismic geomagnetic anomaly and earthquake location
作者:	Chen,CH;Liu,JY;Lin,PY;Yen,HY;Hattori,K;Liang,WT;Chen,YI;Yeh,YH;Zeng,XP
贡献者:	太空科學研究所
关键词:	CHI-CHI EARTHQUAKE;LOMA-PRIETA EARTHQUAKE;DEEP-SOUNDING DATA;REGIONAL EARTHQUAKES;SOURCE PARAMETERS;MAGNETIC SUSCEPTIBILITY;JANUARY-DECEMBER;FAULT-ZONE;TAIWAN;STRESS
日期:	2010
上传时间:	2012-03-27 17:30:48 (UTC+8)
出版者:	國立中央大學
摘要:	Many researchers studied the relationships between appearances of geomagnetic anomalies and their distances to earthquake epicenters or faults. Yet, occasionally some magnetometer stations located nearby earthquake epicenters and/or faults do not observe geomagnetic anomalies. In this paper, a new hybrid system which simultaneously takes the hypocenter and fault plane solution into account is constructed to examine 38 earthquakes interpreted to be associated with geomagnetic anomalies during the period 1988-2001 in Taiwan. The Surface Magnetic Anomaly Reference Tip (SMART) of the new system is used instead of the epicenter or the fault to investigate statistically the distance relationship between the anomalies and the earthquake parameters. Results show that the anomalies gather along the fault and in the belt zone to the SMART. Possible mechanisms causing the anomalies in the two zones are proposed and discussed. Characteristics of the anomaly might shed some light on locations of faults before earthquake occurrences. (C) 2010 Elsevier BM. All rights reserved.
關聯:	TECTONOPHYSICS
显示于类别:	[太空科學研究所 ] 期刊論文

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