Seismogenic structure beneath d�collement inferred from 2009/11/5 ML 6.2 mingjian earthquake in central Taiwan

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Title:	Seismogenic structure beneath d�collement inferred from 2009/11/5 ML 6.2 mingjian earthquake in central Taiwan
Authors:	温國樑;Lin, Che-Min;Chang, Tao-Ming;Wen, Kuo-Liang;Kuo, Chun-Hsiang;Hsieh, Hung-Hao
Contributors:	地球科學學院地球科學學系
Keywords:	Aftershocks;Broadband;Chi-Chi earthquake;Compressive properties;D�collement;Earthquake engineering;Earthquakes;Fault lines;Landslides & mudslides;Mingjian earthquake;Miocene;Seismic activity;Seismic engineering;Shaking;Skin;Tectonics;Thin-skinned model
Date:	2014-01-28
Issue Date:	2026-04-23 11:43:51 (UTC+8)
Publisher:	Chinese Geoscience Union;Taiwan: 中華民國地球科學學會
Abstract:	摘要： One decade after the 1999 Chi-Chi earthquake, central Taiwan experienced more strong ground shaking [Central Weather Bureau (CWB), intensity VII] induced by a ML 6.2 earthquake on 5th November 2009. This earthquake occurred in the Mingjian Township of Nantou County, only 12 km southwest of the Chi-Chi earthquake epicenter. The broadband microearthquake monitoring network operated by the National Center for Research on Earthquake Engineering (NCREE) observed numerous aftershocks in the five days following the mainshock. The relocated aftershocks and the mainshock focal mechanism indicated a NE-SW striking fault dipping 60° toward the northwest. This fault plane is inside the pre-Miocene basement and the rupture extends from the lower crust to 10 km depth just beneath the basal décollement of the thin-skinned model that is generally used to explain the regional tectonics in Taiwan. The fault plane is vertically symmetrical with the Chelungpu fault by the basal décollement. The NW-SE compressive stress of plate collision in Taiwan, as well as the deep tectonic background, resulted in the seismogenic structure of the Mingjian earthquake at this location. 出版者： Taiwan: 中華民國地球科學學會出版日期： 2014 出處： TAO : Terrestrial, atmospheric, and oceanic sciences, 2014, Vol.25 (1), p.27-38 資源來源：華藝線上圖書館版權： 2014. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 識別號： ISSN: 1017-0839 識別號： ISSN: 2223-8964 識別號： ISSN: 2311-7680 識別號： EISSN: 2311-7680 識別號： DOI: 10.3319/TAO.2013.09.23.01(T)
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