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1980年10月10日阿尔及利亚的阿斯南(El ASnam)发生了M_s=7.2级地震。震后法-阿联合考察队布设了临时地震台网。其中有法国斯特拉斯堡地球物理研究所地震研究室,为作近场研究而布设的由8个地震站组成的遥测地震台网,取得了良好的记录,较精确地确定了各项地震参数。我们试用了J.A.Mendiguren所提出的“用综合节面解寻找不同震源机制分布区域的方法”,利用上述台网所取得的部分余震资料,对该区余震的发震构造及构造应力场进行了研究。
On October 10, 1980, an M_s = 7.2 earthquake occurred in El-Al-Nnam, Algeria. After the earthquake law - A joint investigation team laid a temporary seismic network. Among them are the Earthquake Research Laboratory of the Institute of Geophysics, Strasbourg, France. Good records have been made of the telemetered seismic network consisting of 8 seismological stations deployed as a near-field study, and the earthquakes have been accurately identified parameter. We have tried JAMendiguren’s “Method to Find Distribution Areas of Different Source Mechanisms by Comprehensive Section Solutions”, and used some of the aftershock data obtained from the above network to study the seismogenic structures and tectonic stress fields of the aftershocks in this area .