Effectiveness Test of Seismic Prediction of Water Level in Fluid Monitoring Well Based on the Molchan Diagram Method
In order to study the prediction efficiency of the water level in the observational wells,and to explore the rela-tionship between the water-level anomaly and the earthquake,we process the observed water-level data of Deyang Well,Jianchuan Well,Zuoshu Well and Menyuan Well by the difference method and the tidal load-unloading rati-o method.Then,using the Molchan chart,we test the prediction efficiency of the 4 monitoring wells for the predic-tion of the occurrence-time,and the magnitude of the earthquakes in different blocks.The results show that the wa-ter level in the 4 monitoring Wells are efficient for the prediction of earthquakes which may occur within 180 days,and effect for the prediction of the moderate-and strong-earthquakes within a certain range.The prediction efficien-cy is affected by the distribution of tectonic structures;in the structure-developed areas,the water-level anomaly is efficient for the earthquake prediction.
万方数据
维普
