Effect of tidal triggering on seismicity in Taiwan revealed by the empirical mode decomposition method

NCUIR > College of Earth Sciences > Department of Earth Sciences > journal & Dissertation > Item 987654321/103554

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103554

Title:	Effect of tidal triggering on seismicity in Taiwan revealed by the empirical mode decomposition method
Authors:	陳宏嘉;Chen, H.-J.;Chen, C.-C.;Tseng, C.-Y.;Wang, J.-H.
Contributors:	地球科學學院地球科學學系
Keywords:	Comparative analysis;Decomposition;Earthquakes;Methods;Seismic activity;Seismology;Tidal effects
Date:	2012-07-30
Issue Date:	2026-04-23 11:32:43 (UTC+8)
Publisher:	European Geosciences Union;Katlenburg-Lindau: Copernicus Publications
Abstract:	摘要： The effect of tidal triggering on earthquake occurrence has been controversial for many years. This study considered earthquakes that occurred near Taiwan between 1973 and 2008. Because earthquake data are nonlinear and non-stationary, we applied the empirical mode decomposition (EMD) method to analyze the temporal variations in the number of daily earthquakes to investigate the effect of tidal triggering. We compared the results obtained from the non-declustered catalog with those from two kinds of declustered catalogs and discuss the aftershock effect on the EMD-based analysis. We also investigated stacking the data based on in-phase phenomena of theoretical Earth tides with statistical significance tests. Our results show that the effects of tidal triggering, particularly the lunar tidal effect, can be extracted from the raw seismicity data using the approach proposed here. Our results suggest that the lunar tidal force is likely a factor in the triggering of earthquakes. 出版者： Katlenburg-Lindau: Copernicus Publications 出版日期： 2012-07-12 出處： Natural hazards and earth system sciences, 2012-07, Vol.12 (7), p.2193-2202 資源來源： Agricultural & Environmental Science Collection 版權： COPYRIGHT 2012 Copernicus GmbH 版權： Copyright Copernicus GmbH 2012 識別號： ISSN: 1684-9981 識別號： ISSN: 1561-8633 識別號： EISSN: 1684-9981 識別號： DOI: 10.5194/nhess-12-2193-2012
Appears in Collections:	[Department of Earth Sciences ] journal & Dissertation

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