据现有资料,安微六安地区发生了三次比较特殊的地震,它们具有震级不大,有感面积特大的特征。本文利用等震线反推了震源参数和有关介质参数,发现导致这种特殊性的原因可能是震区介质的低S值高Q值特征,并从地质构造上对这种特征作了探讨。 According to the available information, three special earthquakes occurred in Anwei Lu’an area. They have the characteristics of small magnitude and large area. In this paper, the isoprobe is used to inversely infer the source parameters and the related medium parameters. It is found that the reason leading to this particularity may be the low Q value and high Q value of seismic media, and this feature is discussed from the geological structure.