摘要
研究了定点连续形变长周期频段信息和块体构造活动的关系。研究结果表明,在川滇菱形块体内,定点连续形变观测获得的长周期频段信息中的长期趋势变化除去仪器零漂等局部干扰外,基本上都和块体运动方向或者块体边界主干断裂活动方式相一致,表明在定点连续形变长周期频段信息中,也存在有与地震孕育有关的地壳形变信息。对其在预报上的作用做了初步研究。
The relationship between the long-term changes of the crustal title observation in seismic stations and the activities of earthquake block structures is researched in this paper.The zero drift of the instrument is removed from the long-term change information from seismic stations data.The remained changes are related to and consistent with the movement of mian geological blocks.These change information includes crustal information and so it can be used in the earthquake forecast.
出处
《四川地震》
2005年第2期35-39,共5页
Earthquake Research in Sichuan
关键词
定点形变
块体运动
地震孕育
deformation of seismic station
block movement
seismic monitoring
