Determination of Q S, spreading factor and S-wave acceleration by inversion of seismic intensity data |
| |
| Authors: | Jiashu Xie and Huicheng Shao |
| |
| Institution: | (1) Seismological Bureau of Shaanxi Province, 710068 Xi’ an, China |
| |
| Abstract: | In this paper, on the basis of intensity data from 85 earthquakes occurred in China, the method of resolving overdetermined
equations by using the damped least squares method is applied to inversing for the mean value of 1 s. S wave quality factor,
the spreading factor and the S-wave acceleration at the foci of earthquakes in 7 regions of China. The relation between S-wave
acceleration at the foci of earthquakes and magnitude is discussed. As an example, 2-DQ
S distribution in Taiwan Province is obtained by inversion. It is found that there exists some corresponding relation between
this distribution and Bouguer gravitational anomaly and seismicity.
Preliminary analysis and discussion on results of the inversion, and estimation of error inQ
S are made.
The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,13, 202–211, 1991.
The English version of this paper is improved by Professor Yushou Xie. |
| |
| Keywords: | intensity data quality factor spreading factor S-wave acceleration |
| 本文献已被 SpringerLink 等数据库收录！ |
|
