中国东部六省 Lg 波振幅比 H/Z 和台站项  

Lg AMPLITUDE RATIOS H/Z AND STATION TERMS IN THE SIX EASTERN PROVINCES OF CHINA

作　　者：葛焕称[1] 黄才中[1] 倪岳伟[1] 李永勤[1] 

机构地区：[1]江苏省地震局,中国南京210014

出　　处：《地震学报》1991年第3期281-286,共6页Acta Seismologica Sinica

基　　金：地震科学联合基金会资助的课题

摘　　要：根据中国东部六省80个台的约1Hz Lg 波振幅资料得出,Lg 波水平与竖直分量之比1g H/Z 值平均为0.13.对于松散沉积、花岗岩和沉积岩类台基,1g H/Z 值分别平均为0.55,0.04和0.10对此三类台基,水平向振幅台站项 C_h,分别平均为0.65,-0.09和0.00;竖直向振幅台站项 C_2分别为0.32-0.04和0.00.C_h,C_Z 和1gH/Z 间存在关系 C_h=0.01+2.10C_z和 C_h=-0.15+1.46 1gH/Z.Using the data set of about 1 Hz Lg amplitudes from 80 stations in the six eastern provinces of China , the ratios of horizontal to vertical amplitude of Lg waves , H/Z are determined .The mean lg (H/Z) value is equal to 0.13.For the station bases of soft deposits , granite and sedimentary rock , lg (H/Z) values average 0.55, 0.04 and 0.10 respectively . For these three kinds of station bases , the station terms of horizontal amplitude , Ch average 0.65 , - 0.09 and 0.00 ; that of vertical amplitude , C2 average 0.32,-0.04 and 0.00,respectively . And the relations between Ch,C2 and lg (H/Z) are : Ch=0.01 + 2.10 C2 and Ch = -0.15+ 1.46 1g (H/Z).

关 键 词：地震 L9波 地震波 振幅比 中国 

分 类 号：P315.3[天文地球—地震学]