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Acta Seismologica Sinica

, Volume 13, Issue 5, pp 544–551 | Cite as

Far-field analysis of effects of unilateral rupturing fault on the space correlation of strong ground motion

  • Jin Xing 
  • Chen Chao 
  • Zhang Ming-yu 
Article

Abstract

On the assumption that seismic source is simplified as linear rupture fault with finite length, this paper qualitatively studies the seismic source effects on space correlation of strong ground motion. Based on expanding expression of Fourier spectrum of strong ground motion with space coordinate variables, this paper also gives a expression of describing correlation of strong ground motion field. According to far-field condition, the theoretical formula of the expression can be obtained. Furthermore, this paper presents a theoretical formula of estimation the radius of strong ground motion field, which depends on expansion condition of Fourier spectrum of strong ground motion, with space coordinate variables. At last, taking one earthquake as an example, this paper gives three-dimension patterns of radius of the field with epicenter distance and azimuth as well as frequency.

Key words

one-direction rupture fault strong ground motion space correlation far-field 

CLC number

P315.9 

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Copyright information

© Acta Seismologica Sinica 2000

Authors and Affiliations

  • Jin Xing 
    • 1
  • Chen Chao 
    • 1
  • Zhang Ming-yu 
    • 1
  1. 1.Institute of Engineering MechanicsChina Seismological BureauHarbinChina

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