Nonlinear dynamics of a continuous spring-block model of earthquake faults

被引：3
|
作者：
Hahner, P [1 ]
Drossinos, Y [1 ]
机构：
[1] Commiss European Communities, Joint Res Ctr, I-21020 Ispra, Va, Italy
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1998年 / 31卷 / 10期
关键词：
D O I：
10.1088/0305-4470/31/10/002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The continuous one-dimensional Burridge-Knopoff model is generalized by introducing plastic creep in addition to rigid sliding. The resulting equations, for an order parameter (sliding rate) and a control parameter (driving force), exhibit a velocity-strengthening and a velocity-softening instability. In the former regime, reminiscent of self-organized criticality in continuum systems, anomalous diffusion is described by a nonlinear diffusion equation. The latter regime, characteristic of deterministic chaos, is described by a time-dependent Ginzburg-Landau equation. Implications of the model with respect to earthquake predictability are discussed.
引用
收藏
页码：L185 / L191
页数：7
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