【摘要】 利用安徽台网记录的波形资料,进行地震重新定位,扣除场地响应、非弹性衰减等。反演计算2014金寨地震序列震源参数值,分析研究其特征变化及参数之间的关系。结果表明:(1)视应力、地震矩等震源参数随时间变化均呈现震前增强震后明显减弱的趋势,主震时达最大,震后降低到相对较低水平;(2)视应力与地震矩、震级呈明显的正相关,应力降随地震矩增加而增加的趋势不明显,拐角频率与地震矩呈明显的负相关,地震矩的对数与震级呈线性相关,此对深入了解震源参数的物理意义有着重要作用。这些研究结果为大别山及周边地区的震情判定和趋势预测提供一定的科学依据。更多还原

【Abstract】 With the waveform data recorded by Anhui network, the paper does the seismic repositioning, further baseline correction, site response deduction, inelastic attenuation and so on. Based on above, the paper inverse and calculates source parameters of Jinzhai earthquake sequence in 2014, analyzes the changes feature and the relationship between the source parameters. The results show that: apparent stress, seismic moment and other source parameters changing over time showed enhanced front shock significantly weakening trend after the main shock, main shock reaches the maximum, while each parameter value reduced to a relatively low level, and stabilized after earthquake; apparent stress was significantly positively correlated with seismic moment and magnitude, while the increasing trend of stress drop is not obvious, corner frequency and seismic moment was a significant negative correlation, logarithm of seismic moment and magnitude linearly related, which has animportant role in understanding the physical meaning of the source parameters. These results provide a scientific basis for earthquake determination and forecasting of Dabie Mountain and the surrounding area更多还原