Energy variation of earthquake ground motion in time frequency domain using Wavelet Transform
The characteristics of seismic wave energy are examined in this study. The attenuation equation of total seismic wave energy with respect to moment magnitude and hypocentral distance is proposed in order to estimate the seismic intensity. It is concluded that the total seismic wave energy should be better than PGA to characteristic of the seismic wave energy of the non-stationary earthquake ground motions based on wavelet transform using Meyer wavelet. It is found that the frequency distribution of seismic wave energy can be mainly explained by the omega-square source model.
Seismic wave energy Wavelet transform Attenuation equation
T. Hirai S. Sawada
NEWJEC Inc., Japan Professor, Disaster Prevention Research Institute Kyoto Univ., Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）