摘要
以乾陵台地倾斜、地应变观测为基础,研究了自2001年数字化记录以来有同震记录的分钟值观测曲线,探讨了同震形变响应的物理特征,结果表明面波延迟时间、同震最大变幅、持续时间等与各个地震的震级、震中距存在一定程度的线性或正比分布关系;同震衰减特征与地震参数、仪器性能、地基结构等因素有关。
On the basis of the digital observation of crustal tilt and ground strain at Qianling seismostation, the digital records of the minutely co-seismic observation curves since 2001 are studied and the physical characteristics of co-seismic deformation responses are studied. The results show that there are linear or proportional distribution re- lationship in a certain degree between the delay time of surface wave, the biggest shock, duration, and the magni- tudes, the epicenter distances of all earthquakes. Besides, the coseismic attennation characteristics are related to some factors such as earthquake parameters, instrument performance, foundation structure.
出处
《大地测量与地球动力学》
CSCD
北大核心
2012年第6期41-44,共4页
Journal of Geodesy and Geodynamics
基金
中国地震局"三结合"课题(2010陕西021号)
关键词
地形变
数字化观测资料
同震响应
震级
震中距
crustal deformation
digital observation records
conseismic response
magnitude
epicenter distance
