THE DEEP STRUCTURES AND THE TYPES OF THE EARTHQUAKES OCCURRED IN HAICHENG AND TANGSHAN AREA

In this paper, the deep structures beneath Haicheug and Tangshan area have been obtained by the way of fitting synthetic seismograms with P waveforms of the deep focus teleseismic records. From these results, the types of the earthquakes occurred have been discussed for two area. We have proposed that there are the accidented deep layer structure in two earthquake area. These may be why the different earthquakes in Haicheng and Tangshanarea have occurred,