本文利用四川台网的DD—1、维开克等短周期地震仪对不同方向来的5个深远地震记录,识别在四川地区莫霍界面产生的PS转换波,求得了四川地区地壳厚度,其结果与不同作者用天然地震其它震相、人工地震测深、重力反演等方法所得的结果大体一致。初步尝试表明,利用区域地震台网记录深远地震的转换波研究区域地壳结构是可行的。 In this paper, five deep-seismograms from different seasons in DD-1, Vikacs and other short-period seismographs in Sichuan are used to identify the PS converted waves generated at the Moho interface in Sichuan Province. The crustal thickness The results are consistent with the results of different authors using other seismic facies, artificial seismic sounding, gravity inversion and other methods. Preliminary experiments show that it is feasible to study the regional crustal structure by using the regional seismic network to record converted waves of far-flung earthquakes.