Abstract:Based on 86 ML≥2.5 seismic events waveform recorded in Jiangxi since 2009, we use genetic algorithm inversion to obtain the non-elastic damping coefficient in site response of each station, calculating the source parameter on the basis. The results show that the frequency dependent non-elasticity coefficient Q in Jiangxi area is estimated as Q(f)=323.1f0.505 9 and the site response of most stations is flat in frequency domain, consistent with the bedrock property of the stations. We find a linear relationship between ML and these seismic moment M0 in the single-logarithmic coordinates, a negative correlation between seismic moment and corner frequency, a non-significant correlation between seismic stress drop and seismic moment, and a significant double logarithmic relationship between source radius and stress drop.