A study on aftershock spatio-temporal fractal and b-value variation rule of Wenchuan earthquake

Author

Fayou, A. ; Kong Jiming ; Tian Shujun ; Cui Yun ; Wu Wenping

Author_Institution

Inst. of Mountain Hazards & Environ., Chinese Acad. of Sci., Chengdu, China

Volume

6

fYear

2010

fDate

10-12 Aug. 2010

Firstpage

2721

Lastpage

2725

Abstract

With geometric fractal methods, the aftershock spatial-temporal fractal dimension of Wenchuan earthquake was calculated, and the variation rule of seismic b-value were compared with the results, which proved that the aftershock spatial-temporal fractal dimensions were shown with the overall decreasing trend in Wenchuan earthquake, which was the same to the variation rule of seismic b-value; strong aftershocks mainly occurred in the descending stage and the low valley area of the spatial-temporal fractal and b-value curve. This variation of spatial-temporal fractal was considered to represent the clustering variation of seismic spatial-temporal, reflecting the process of destruction and energy release with the tectonic stress action of earth crust rock mass.

Keywords

Earth crust; earthquakes; fractals; rocks; seismology; tectonics; China; Wenchuan earthquake; aftershock spatialtemporal fractal dimension; b-value curve; b-value variation rule; clustering variation; earth crust rock mass; energy release; geometric fractal methods; low valley area; seismic b-value; tectonic stress action; Earth; Earthquakes; Fractals; Seismic measurements; Soil; Stress; Time measurement; Spatio-temporal fractal; Wenchuan earthquake; aftershock; b-value;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems and Knowledge Discovery (FSKD), 2010 Seventh International Conference on

Conference_Location

Yantai, Shandong

Print_ISBN

978-1-4244-5931-5

Type

conf

DOI

10.1109/FSKD.2010.5569510

Filename

5569510