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| Titel |
Characteristics of long-term regional seismicity before the 2008 Wen-Chuan, China, earthquake using pattern informatics and genetic algorithms |
| VerfasserIn |
H.-C. Li, C.-C. Chen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 3 ; Nr. 11, no. 3 (2011-03-30), S.1003-1009 |
| Datensatznummer |
250009280
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| Publikation (Nr.) |
 copernicus.org/nhess-11-1003-2011.pdf |
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| Zusammenfassung |
| To understand the generation of the 2008 Wen-chuan, 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). |
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