Characteristics of long-term regional seismicity before the 2008 Wen-Chuan, China, earthquake using pattern informatics and genetic algorithms

NCUIR > College of Earth Sciences > Graduate Institute of Geophysics > journal & Dissertation > Item 987654321/50569

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50569

Title:	Characteristics of long-term regional seismicity before the 2008 Wen-Chuan, China, earthquake using pattern informatics and genetic algorithms
Authors:	Li,HC;Chen,CC
Contributors:	地球物理研究所
Keywords:	THRESHOLD SYSTEMS;DYNAMICS;TAIWAN;MODEL
Date:	2011
Issue Date:	2012-03-27 17:36:57 (UTC+8)
Publisher:	國立中央大學
Abstract:	To understand the generation of the 2008 Wenchuan, China earthquake, we developed a strategy to objectively identify possible seismic precursors. Based on the pattern informatics (PI) method, the pattern of seismic anomaly was identified by the aid of genetic algorithms (GA) to be highly similar to the spatial distribution of the Wen-chuan earthquake sequence. We found that smaller earthquakes (M < 4.4) showed a linear relationship of Gutenberg-Richter (G-R) distribution. However, the frequency of the intermediate earthquakes (M >= 4.4) showed an uplift. This uplift supports the seismic activation hypothesis developed by Rundle et al. (2000b) and is similar to the case of the 1999 Chi-chi, Taiwan earthquake sequence reported by Chen (2003).
Relation:	NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
Appears in Collections:	[Graduate Institute of Geophysics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	885	View/Open

社群 sharing