南北地震带北段地壳微动态变化的初步研究

PRELIMINARY STUDY ON THE MICRO-DYNAMIC CHANGE OF CRUST IN THE NORTHERN SECTION OF NORTH-SOUTH SEISMIC ZONE

摘要:

本文根据应力台站和水平形变的实际观测结果,研究了南北地震带北段1970-1983年间的区域地壳微动态变化特征及其与同时期中强地震活动的关系,得出1970-1983年本区地壳微动态变化与地球自转角速率的长期变化有关的初步结论。

Abstract:

In the light of practical observation to stress and horizontal deformation, this paper deals with the characteristics of micro dynamic change of crust and the relationship between such change and moderate and strong earthquake events in the northern section of North-south Seismic zone during 1970-1983, from which a preliminary conclusion comes that there exists a relation between the long-term variation of angular velocity of the earth's rotation and the micro-dynamic change of the crust in this region from 1970 to 1983.