基于球体位错理论的地震形变分析

Abstract

Abstract: Distribution of seismic deformation depends mainly on earthquake fault rupture characteristics, and earthquakes of different magnitude have different deformation response ranges. In this paper, based on heterogeneous spherical dislocation theory, considering the precision of 5 mm, coseismic deformation response ranges are calculated for thrust and strike-slip earthquakes of magnitude M_W6.0 to M_W8.5. Then we calculated the empirical formulae of earthquake magnitudes and response ranges, and compared them with the results of actual earthquakes (the 2001 Kunlun earthquake and the 2013 Lushan earthquakes). Results show that response ranges from the empirical formula match the observed data well, and these empirical formulae can be used to estimate seismic deformation response ranges with the magnitude range from M_W6.0 to M_W8.5, and to provide reference information for analysing far field earthquake deformation characteristics and coseismic and postseismic layout of measuring points.

Key words: Seismic deformation response, Spherical dislocation theory, Fault rupture characteristics

CLC Number:

P315.7

TIAN Ping, JIN Hong-lin. Calculation of Seismic Deformation Response Range Based on Spherical Dislocation Theory[J]. EARTHQUAKE, 2015, 35(2): 26-33.

References

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Calculation of Seismic Deformation Response Range Based on Spherical Dislocation Theory

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