The analysis of the reflecting earthquake ability of cross-fault levelling processed by the deformation data accumulation method
The cumulative deformation rate method is applied to the cross-fault levelling in the Tanlu Fault Zone.The characteristics of the cumulative deformation rate before earthquakes were analyzed by calculating the levelling data for the six sites over 30 years.The result shows that:①When the curves of original data show large steps or turns,the levelling data processed by the cumulative deformation rate method show anomalies with high frequency;②The reflecting earthquake ability of levelling data after processed exhibits better,while there still exist some other external factors such as water level affecting the reflecting earthquake ability;③The effective prediction time for earthquake is 0-24 months after the appearance of abnormality.
accumulation method of deformation ratescross-fault levellingdata analysisearthquake
国家科技期刊平台
NSTL
万方数据
