Abstract In this paper, the vertical component seismic record data of 15 near-field stations of the Minxian-Zhangxian MS6.6 earthquake are used to analyze the main shock. The average centroid frequency is calculated, and its geographical distribution is given. The results show that the high frequency distribution is in southwestern sides of the Lintan-Tanchang fault, not along the Lintan-Tanchang fault; the elliptical long axis parallels to the fault strike. That is to say, the thrust block of this earthquake is between the southwest side of Lintan-Tanchang fault and the other fault. The geographical distribution of the highest frequency of the spectrum is in agreement with the macroscopic epicenter. It can be considered that the highest frequency region of the spectral centroid is the most serious area of earthquake disaster.
XU Kangsheng,ZENG Wenhao. The Seismogenic Fault and Near Field Distribution of Spectrum Centroid for Minxian-Zhangxian MS6.6 Earthquake[J]. jgg, 2016, 36(8): 666-668.
XU Kangsheng,ZENG Wenhao. The Seismogenic Fault and Near Field Distribution of Spectrum Centroid for Minxian-Zhangxian MS6.6 Earthquake[J]. jgg, 2016, 36(8): 666-668.
