Abstract
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 deposit,granite and sedimentary rock, lg(H/Z)-values average 0.55, 0.04 and 0.10, respectively. For the three kinds of station bases, the station terms of horizontal amplitude,C h average 0.65, −0.09 and 0.00; that of vertical amplitude,C z average 0.32, −0.04 and 0.00, respectively. There are the relations betweenC h ,C z and lg(H/Z):C h =0.01+2.10C z andC h =−0.15+1.46 lg(H/Z).
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References
Bath, M., 1979. Teleseismic magnitude relations.Seismol. Inst., Uppsala, Report, No. 2–79, 37.
Chen, P. S. and Qin, J. Z., 1982. The effect of the calibration function, azimuths and sites of the stations and different methods of approach on the magnitude determination of near earthquakes.Journal of Seismology. 1: 6–15 (in Chinese).
Chen, P. S. and Nuttli, O. W., 1984. Estimates of magnitudes and short-period wave attenuation of Chinese earthquakes from modified Mercalli intensity data.Bull. Seism. Soc. Am.,74, 957–968.
Ge, H. C., Huang, C. Z., Ye, P. Y. and Lu, Z. F., 1987. Lg magnitude determination for the eastern six provinces of China (Part 1)—determination method and results.Acta Seismologica Sinica,1, 42–61 (in English).
Ge, H. C., Ni, Y. W., Huang, C. Z. and Li, Y. Q., 1991. The revisedm lg scale in six eastern provinces of China.Acta Seismologica Sinica,13, 171–178 (in Chinese).
Gupta, I. N. and Mclaughlin, K. L., 1987. Attenuation of ground motion in the eastern United States.Bull. Seism. Soc. Am.,77, 366–383.
Gupta, I. N., von Seggern, D. H. and Wagner, R. A., 1982. A study of variations in the horizontal to vertical Lg amplitude ratio in the eastern United States.Bull. Seism. Soc. Am.,72,2081–2088.
Street, R. L., 1978. A note on the horizontal to vertical Lg wave amplitude ratio in eastern United States.Earthquake Notes,49, 15–20.
Toro, G. R. and McGuire, R. K., 1987. An investigation into earthquake ground motion characteristics in eastern North America.Bull. Seism. Soc. Am.,77, 468–489.
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The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,13, 281–286, 1991.
Project sponsored by the Chinese Joint Seismological Science Foundation.
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Ge, H., Huang, C., Ni, Y. et al. Lg amplitude ratiosH/Z and station terms in the six eastern provinces of China. Acta Seismologica Sinica 5, 257–261 (1992). https://doi.org/10.1007/BF02651692
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DOI: https://doi.org/10.1007/BF02651692