华北地震区地震平静幕持续时间的变化及其解释

本文研究了华北地震区地震平静幕持续时间的变化。发现在每个地震活动期里地震平静幕的持续时间以非线性方式衰减。笔者用灰色系统ＧＭ（１，１）模型拟合了这一非线性特点并用流变体模型对这个特点作了初步解释。

VARIATION OF DURATION TIME Of SEISMIC QUIESCENCE EPISODES IN NORTH CHINA SEISMIC REGION AND ITS INTERPRETATION

In this paper, the variations of duration time of seimic quiescence episodes in North China seismic region are studied.It is discovered that the duration time of quiescence episodes in each active period reduces in a non-linear manner. The author fits the non-linear feature using GM(1,1)model of grey system and roughly interprets this feature using rheologic boby model.