地倾斜矢量的稳定性和震兆特征的研究

A RESEARCH FOR TILT VECTOR STABILITY AND PRECURSOR CHARACTERS IN ACCORDANCE WITH THE MAX-MODULUS

摘要:

本文对地倾斜矢量用于地震异常识别的问题进行了讨论。在研究和讨论了矢量模概念的基础上,将其用于地倾斜矢量变化的稳定性判别和震兆识别的研究。本文利用矢量模研究了青海共和、景泰地震和大同地震前后,有关台站的地倾斜矢量的变化特征。结果表明,矢量的停滞打结可能是稳定的,因而未必是震兆,而剧变则可能是非稳定的,可作为异常的判别标志。

Abstract:

In this paper, the problems about direct identification of precursor with the tilt vector are discussed, and the method is also put forward. On the basis of tilt modulus, the max-modulus of vector is researched. The stability of tilt vector and relationship between vector characters, (for exam pie:pause, knot. radical change) are studied. The relationships between the stability of vector characters and precursors of Gonghe. Qinghai and Jingtai, Gansu and Datong, Shanxi earthquakes are discussed. The results show that the knots and pauses may be steady, therefore they are uncertainly precursor marks; however, the radical change of vector is possible precursor. The research for stability is more meaningful and effective, for precursor analysis than direct method.