Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104670
Title: Seismic behavior in central Taiwan : response to stress evolution following the 1999 Mw 7.6 Chi-Chi earthquake
Authors: Wu, Yih-Min
Chan, Chung-Han
Keywords: DRNTU::Science::Geology::Volcanoes and earthquakes
Issue Date: 2014
Source: Chan, C. H., & Wu, Y. M. (2014). Seismic behavior in central Taiwan: Response to stress evolution following the 1999 Mw 7.6 Chi-Chi earthquake. Journal of Asian Earth Sciences, 90, 101-106.
Series/Report no.: Journal of Asian earth sciences
Abstract: Following the 1999 Mw 7.6 Chi-Chi earthquake, a large amount of seismicity occurred in the Nantou region of central Taiwan. Among the seismic activities, eight Mw ⩾ 5.8 earthquakes took place following the Chi-Chi earthquake, whereas only four earthquakes with comparable magnitudes took place from 1900 to 1998. Since the seismicity rate during the Chi-Chi postseismic period has never returned to the background level, such seismicity activation cannot simply be attributed to modified Omori’s Law decay. In this work, we attempted to associate seismic activities with stress evolution. Based on our work, it appears that the spatial distribution of the consequent seismicity can be associated with increasing coseismic stress. On the contrary, the stress changes imparted by the afterslip; lower crust–upper mantle viscoelastic relaxation; and sequent events resulted in a stress drop in most of the study region. Understanding seismogenic mechanisms in terms of stress evolution would be beneficial to seismic hazard mitigation.
URI: https://hdl.handle.net/10356/104670
http://hdl.handle.net/10220/20263
ISSN: 1367-9120
DOI: 10.1016/j.jseaes.2014.04.006
Rights: © 2014 Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Asian Earth Sciences, Elsevier Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.jseaes.2014.04.006].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EOS Journal Articles

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