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[1]GUO Xiao,ZHANG Yuan-sheng,XIN Hai-liang,et al.Inelastic Attenuation Value Q and Site Response in the Northeastern Margin of Qinghai-Tibet Plateau[J].Journal of Seismological Research,2008,31(02):114-118.

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Inelastic Attenuation Value Q and Site Response in the Northeastern Margin of Qinghai-Tibet Plateau

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 31 Number of periods: 2008 02 Page number: 114-118 Column: Public date: 2008-02-23

Title:: Inelastic Attenuation Value Q and Site Response in the Northeastern Margin of Qinghai-Tibet Plateau

Author(s):: GUO Xiao¹; 2; ZHANG Yuan-sheng¹; 2; XIN Hai-liang¹; LI Wen¹; ZHANG Wu-min¹; (1.Lanzhou Institute of Seismology,CEA,Lanzhou 730000,Gansu,China)(2.Lanzhou Base of Institute of Earthquake Prediction,CEA,Lanzhou 730000,Gansu,China)

Keywords:: inelastic attenuation value Q; site response; Northeastern margin of Tibet Plateau

CLC:: P315.3⁺1

DOI:: -

Abstract:: According to 437 horizontal-component seismograms recorded at 21 stations of Gansu Digital Seismic Network,we used Genetic Algorithm and Atkinsons method to study the inelastic attenuation value Q of the northeastern margin of Qinghai-Tibet plateau and the site response of each station based on the trilinear geometrical spreading model.The results indicate that the frequency-dependent of inelastic attenuation value Q in the studied area is estimated as:Q(f)=564.7f ^0.3.The site response shows significant amplification at every station except for the Wudu,Hezuo,Huangyuan,Dingxi,Diebu stations.

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Last Update: 2008-02-23