紫坪铺水库地区尾波QC值研究

Abstract

Abstract: Using Sato model, this article studied the characteristics of coda wave Q values varied with time near the Zipingpu reservoir located at the hypocenter region of the 2008 Wenchuan M_S8.0 earthquake. The results show that Q₀ of coda waves recorded by the 4 stations near the Zipingpu reservoir is relatively small and η is relatively big. Q₀ of the MZP station which is the nearest station to the earthquake swarm is the biggest, and has a value of 29.0. On the other hand, Q₀ of the BAJ station which is the farthest station to the earthquake swarm is the smallest, and has a value of only 13.9. The difference of Q₀ can be attributed to the medium's depth reflected by the coda wave Q values and small elapse time could be one of the reason for the relatively big η value.

Key words: Zipingpu reservoir, Coda wave Q_C, Wenchuan earthquake

CLC Number:

P315.7

ZHOU Lian-qing, ZHAO Cui-ping, CHEN Zhang-li. Coda Wave Q_C Values in the Zipingpu Reservoir Area, Sichuan Province[J]. EARTHQUAKE, 2009, 29(4): 44-51.

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Coda Wave Q_C Values in the Zipingpu Reservoir Area, Sichuan Province

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Coda Wave QC Values in the Zipingpu Reservoir Area, Sichuan Province

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Coda Wave Q_C Values in the Zipingpu Reservoir Area, Sichuan Province