Induced transtensional earthquakes after the 1999 Chi-Chi earthquake in the compressional collision belt of western Taiwan

NCUIR > College of Earth Sciences > Department of Earth Sciences > journal & Dissertation > Item 987654321/103726

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103726

Title:	Induced transtensional earthquakes after the 1999 Chi-Chi earthquake in the compressional collision belt of western Taiwan
Authors:	詹忠翰;Lee, Timothy Ting-Yu;Chan, Chung-Han;Shyu, J. Bruce H.;Wu, Yih-Min;Huang, Hsin-Hua
Contributors:	地球科學學院地球科學學系
Date:	2014-01-01
Issue Date:	2026-04-23 11:36:17 (UTC+8)
Publisher:	Oxford University Press
Abstract:	摘要： Static stress changes after major earthquakes are generally believed to influence the spatial and/or temporal distribution of aftershocks and subsequent earthquake events. Aftershock sequences, for example, tend to occur in areas with an increase in Coulomb stress with similar mechanisms to the main shock. However, in regions with pre-existing crustal structures with different mechanisms, the corresponding Coulomb stress change may result in different seismic characteristics. In this study, we demonstrate that a transtensional aftershock sequence was induced by the 1999 Chi-Chi earthquake on a pre-existing normal fault, in the compression-dominated western Taiwan fold-and-thrust belt. We used relocated seismicity and earthquake focal mechanisms to show that this sequence is likely occurred along a subsurface fault that strikes N10°W and dips 80° to the east, at depths greater than 5 km. A Coulomb stress change analysis also shows that this aftershock sequence were located in the area of stress increase due to the Chi-Chi earthquake. Such pre-existing normal faults are found throughout the western coastal plains of Taiwan, thus may pose important earthquake hazards for the populous cities located in the area. 其他題名： Geophys. J. Int 出版者： Oxford University Press 出版日期： 2014-01-01 出處： Geophysical journal international, 2014-01, Vol.200 (1), p.638-651 版權： The Authors 2014. Published by Oxford University Press on behalf of The Royal Astronomical Society. 2014 識別號： ISSN: 0956-540X 識別號： ISSN: 1365-246X 識別號： EISSN: 1365-246X 識別號： DOI: 10.1093/gji/ggu422
Appears in Collections:	[Department of Earth Sciences ] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	24	View/Open

社群 sharing

Loading...