摘要
本文引入地震断层的自扩展破裂模式,用以解释地震序列的特征并计算地震断层的分维数。由自扩展破裂模式,本文导出地震断层的分维数为D=ln(1+Abln q/1+q)/ln q/1+q,其中q为余震区长度与主震的破裂尺度之比,A=2.1。在q≥1时,D=Ab,这与Aki的公式b=D/2是一致的。
In this paper, the self-propagating rupture model of seismogenic faults is introduced to interpret the earthquake sequence characteristics and to calculate the fractal dimension of the faults. Based on the model, the fractal dimension of seismogenic faults has been deduced asin Which Q is the ratio of aftershock area length and mainshock rupture length, and A is approximate to 2.1 When q >1 D-Ab, which is consistent with the formula b = D/2 by K. Aki.
出处
《地震研究》
CSCD
北大核心
1991年第1期23-29,共7页
Journal of Seismological Research
关键词
地震
序列性质
断层
分维
Self-propagating rupture
Locked segment
Cantor cutting
Earthquake sequence
Fractal dimension
