A self-organized model of earthquakes with constant stress drops and the b-value of 1

被引：8

作者：

Kumagai, H ^{[1
]}

Fukao, Y

Watanabe, S

Baba, Y

机构：

[1] Nagoya Univ, Res Ctr Seismol & Volcanol, Nagoya, Aichi 4648602, Japan

[2] Univ Tokyo, Earthquake Res Inst, Tokyo 1130032, Japan

[3] Nagoya Univ, Dept Earth & Planetary Sci, Nagoya, Aichi 4648602, Japan

来源：

GEOPHYSICAL RESEARCH LETTERS | 1999年 / 26卷 / 18期

关键词：

D O I：

10.1029/1999GL005383

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The magnitude-frequency relation and the constant stress drop are fundamental features of earthquakes, to which a full physical explanation has yet to be given. We present a model that can reproduce the above two fundamental features simultaneously and spontaneously. The model is two-dimensionally configured spring-loaded blocks with a velocity-weakening friction law. We change widely the dynamic friction parameter, which results in the frequency distributions showing the critical, subcritical and supercritical behaviors. Seismicity near the critical state is characterized by almost constant stress drops and the b-value of 1, in which a self-healing pulse-maintains its frontal dynamic stress at a level near the static friction in an environmental stress heterogeneity that has evolved through the healing process itself.

引用

页码：2817 / 2820

页数：4

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