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本文从构造地震的前提出发,以通海地震余震序列为例,说明:对于浅源地震,利用余震序列的空间展布特征,确定一次大地震断层面的走向、倾向、倾角,进而估算震源体积及发震机理,是利用余震序列的一种尝试。随着震源测定精度的提高,这方面的利用将会越来越广泛。文中也从构造的角度,对通海地震可能存在多重性的问题,进行了初步讨论。
Based on the premise of tectonic earthquakes and taking the aftershock sequence of Tonghai earthquake as an example, this paper shows that for shallow earthquakes, the spatial distribution of aftershock sequences can be used to determine the strike, dip and dip of a large earthquake fault surface and to estimate the source volume and Seismogenic mechanism is an attempt to use the aftershock sequence. As the accuracy of source determination increases, the utilization in this area will be more and more widespread. The article also from the structural point of view, the possibility of the existence of the Tonghai earthquake multiple issues were discussed.