SPECTRAL ANALYSIS OF SHEAR WAVES ACCELERATION RECORDED IN THE QESHM EARTHQUAKE (PERSIAN GULF) 2005 FOR ESTIMATE SOURCE PARAMETERS AND ENVIRONMENT ATTENUATION

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RAHIMI HABIB; KAMALIAN N.A.; HAMZEHLOU H.

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Journal: GEOSCIENCES Year:2006 | Volume:16 | Issue:61 Page(s): 200-207

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Title

SPECTRAL ANALYSIS OF SHEAR WAVES ACCELERATION RECORDED IN THE QESHM EARTHQUAKE (PERSIAN GULF) 2005 FOR ESTIMATE SOURCE PARAMETERS AND ENVIRONMENT ATTENUATION

Author(s)

RAHIMI HABIB | KAMALIAN N.A. | HAMZEHLOU H. | Issue Writer Certificate

Keywords

SOURCE PARAMETERSQ3

ATTENUATIONQ3

SPECTRAL DECAY PARAMETERQ3

SOURCE SPECTRAL METHODQ3

QESHMQ3

PERSIAN GULFQ2

Abstract

The QESHM earthquake in 27 November 2005 with magnitude ML=5.6; mb=6.2 occurred in QESHM Island in the PERSIAN GULF and the main shock recorded in 11 strong motion acceleration building house research center (BHRC).In the study, the strong motion records are used to obtain an estimate of SOURCE PARAMETERS, high frequency ATTENUATION and SPECTRAL DECAY PARAMETER for 6 stations from 11 stations that is good S/N rate.The SOURCE PARAMETERS are obtained by fitting the data by a dislocation source model combined with an exponential model for the ATTENUATION. The source parameter estimated is as follow:M0=1.13*1025 ±5*1024 dyn-cm, r=6.3±1.17 Km, Du=26±1.4 cm Ds=21±1.2 bar, Td = 4.3 secAnd estimated moment magnitude (Mw= 5.95±0.17) agree well with values obtained previously from Harvard University by CMT method. -1rif The high frequency ATTENUATION obtained using from amplitude spectral method that can be written as A (f,r) = G(r).e -prf/ab that here G(r) is geometrical spreading.Estimates of path averaged crustal shear wave quality factors give results in the range between 60 - 367, and mean of SPECTRAL DECAY PARAMETERs for two horizontal components in the ranges between 0.08 - 0.12 sec.

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APA: Copy

RAHIMI, HABIB, KAMALIAN, N.A., & HAMZEHLOU, H.. (2006). SPECTRAL ANALYSIS OF SHEAR WAVES ACCELERATION RECORDED IN THE QESHM EARTHQUAKE (PERSIAN GULF) 2005 FOR ESTIMATE SOURCE PARAMETERS AND ENVIRONMENT ATTENUATION. GEOSCIENCES, 16(61), 200-207. SID. https://sid.ir/paper/31417/en

Vancouver: Copy

RAHIMI HABIB, KAMALIAN N.A., HAMZEHLOU H.. SPECTRAL ANALYSIS OF SHEAR WAVES ACCELERATION RECORDED IN THE QESHM EARTHQUAKE (PERSIAN GULF) 2005 FOR ESTIMATE SOURCE PARAMETERS AND ENVIRONMENT ATTENUATION. GEOSCIENCES[Internet]. 2006;16(61):200-207. Available from: https://sid.ir/paper/31417/en

IEEE: Copy

HABIB RAHIMI, N.A. KAMALIAN, and H. HAMZEHLOU, “SPECTRAL ANALYSIS OF SHEAR WAVES ACCELERATION RECORDED IN THE QESHM EARTHQUAKE (PERSIAN GULF) 2005 FOR ESTIMATE SOURCE PARAMETERS AND ENVIRONMENT ATTENUATION,” GEOSCIENCES, vol. 16, no. 61, pp. 200–207, 2006, [Online]. Available: https://sid.ir/paper/31417/en

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