Study on Coda Q-value of the 2013 Jilin Qianguo Earthquake Sequence

Using 58 M≥1.0 earthquakes in Qianguo between Oct.31 to Dec.31,2013,we calculated the Coda Q-value of Changling station,Songyuan station and Qianan station with the Sato single scattering model,We got the dependency relationship of Coda Q and frequency for the three digital observation stations, they are respectively:Q_c=33.65f^0.9782,Q_c=33.00f^0.9104,Q_c=33.46f^1.0299.The result indicate that the Coda Q was a bit low and had a high dependency with frequency during 2-18 Hz,this phenomenon had agood coincide with the tectonic structure and earthquake activities in the study area.