摘要
本文在收集和分析了华南地区大量的天然地震和人工爆破观测资料的基础上,根据实际情况,采用双层平均地壳模型。通过反复拟合和有约束条件的调制,选取其参数为:H_1=21.4km,Vp_1=6.01km/s,Vs_1=3.55km/s;H_2=11.0km,Vp_2=6.88km/s,Vs_2=3.93km/s;H=32.4km,Vpn=7.98km/s,Vsn=4.58km/s。据此,编制了华南地区近震走时表。经过使用和检验,证明该表精度较高,近于实际。
In this paper, quite a number of observational informations from earthquakes and explosion ia South China are collected and analysed. Based on the analytical conclusion, it seems clear that two-course crustal model may be reasonable to this area.And by means of the fitting and modulation repeatedly, we selecte the mean crustal parameters as follows: H1= 21.4 km, Vpl=6.01 km/s, Vsl=3.55 km/s, H=11.0 km, Vp2=6.88 km/s, Vs2=3.93 km/s, H=3.24 km, Vpn=7.98 km/s, Vsn=4.53 km/s. Finally,we calculated the travel timetable for near earthquake in South China area. By way of actual applications and inspections, it is shown that the accuracy of determination is higher than that of the J-B Table in this area.
出处
《华南地震》
1990年第2期1-16,共16页
South China Journal of Seismology
