Vere-Jones分枝破裂模型和震源过程的相似之处
Vere-Jones” branching crack model was developed in 1970s.In this model,the earthquake source is regarded as the result from the total population of crack elements in a critical or near-critical branching process,where the crack propagates through a series of steps.At each step,each crack element simply terminates or generates several other crack elements nearby.Regarding the total number of steps (generations) as the duration time and the total number of crack elements as the total energy released,the following similarities are found between earthquake sources and this model:1.The distribution of energies is asymptotically a Pareto distribution (power law) for the critical case,or a tapered Pareto distribution (tapered power law,Kagan distribution) for the subcritical case.2. VJ”s branching crack model explains why the EQ magnitude cannot be determined or predicted before the whole source process finishes.3. The number of crack elements at each generation (time step) show similar patterns of earthquake source time functions.
地震学 震源过程 分枝破裂模型
Jiancang Zhuang Dun Wang Mitsuhiro Matsuura
Institute of Statistical Mathematics,10-3 Midori-cho,Tachikawa,Tokyo 190-8562,Japan Earthquake Research Institute,University of Tokyo,1-1-1,Yayoi,Bunkyo-ku,Tokyo 113-0032,Japan
国内会议
北京
中文
702-702
2014-10-19(万方平台首次上网日期,不代表论文的发表时间)