A method for estimating the earthquake intensity caused by a finite-dynamic source

作者：Xu Li-Sheng^*; Zhang Xu; Wei Qiang; Li Chun-Lai

来源：Acta Geophysica Sinica, 2016, 59(10): 3684-3695.

DOI：10.6038/cjg20161015

• Earthquake intensity
• Finite-dynamic source
• Estimating method
• Numerical test
• Practical application

At first, a method to be used to quickly estimate the intensity caused by a destructive earthquake is proposed based on empirical relationship between intensity and magnitude as well as epicentral or hypocentral distance, considering the finiteness and the kinematic and geometrical feature of real faults. Then, the numerical tests are employed to illustrate the effects of the parameters reflecting the kinematic and geometrical feature and the influence of fault dip and rupture velocity. Finally, the method is applied to two destructive earthquakes which have occurred in our country recent years in order to illustrate its practical value and shortage. At the present time when real-time obtaining of the rupture process image is coming true, the method by which the intensity is able to be quickly obtained appears especially significant.

• 出版日期2016-10
• 单位中国地震局