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Paper Information

Journal:   IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE   WINTER 2007 , Volume 31 , Number A1; Page(s) 63 To 71.
 
Paper: 

S-WAVE ATTENUATION AND SPECTRAL DECAY PARAMETER FOR THE AVAJ REGION, IRAN

 
 
Author(s):  KAMALIAN N.A., HAMZEHLOU H.*, GHASEMI H.
 
* INTERNATIONAL INSTITUTE OF EARTHQUAKE ENGINEERING AND SEISMOLOGY, FARMANIEH, DIBAJI, 1953714453 TEHRAN, I.R. OF IRAN
 
Abstract: 

The strong ground motions recorded during the 2002 Avaj earthquake have been used to estimate S wave attenuation, Qb, and spectral decay parameter, k, for the Avaj region. Qb for shear wave is estimated as a function of frequency in the range of 0.6-18 Hz. The results show that Qb increases with frequency in the form of Qb=62.7 f0.9. Our estimates are within the estimated range for different parts of the world for QO and n. The spectral decay parameter, k, has been estimated from the high frequency of the spectra. The dependence of k on the epicenteral distance for the Avaj region is also found.

 
Keyword(s): S-WAVE, ATTENUATION, SPECTRAL DECAY, STRONG MOTION
 
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