Pre-seismic geomagnetic anomaly and earthquake location

Chieh Hung Chen, Jann Yenq Liu*, Pei Ying Lin, Horng Yuan Yen, Katsumi Hattori, Wen Tzong Liang, Yuh Ing Chen, Yih Hsiung Yeh, Xiaoping Zeng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

27 引文 斯高帕斯(Scopus)

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.

原文英語
頁(從 - 到)240-247
頁數8
期刊Tectonophysics
489
發行號1-4
DOIs
出版狀態已發佈 - 2010 六月
對外發佈

ASJC Scopus subject areas

  • 地球物理
  • 地表過程

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