Analysis of Abnormalities and Evaluation of Forecasting Efficacy for NS Component of Water-Tube Tiltmeter at Shuangyang Seismic Station
The NS component of the DSQ water-tube tiltmeter at Shuangyang Seismic Station was analyzed for anomalies and assessed for forecasting efficacy using the abnormal determination method recommended in the Technical Method Business Application Checklist for Seism ic Meetings by the China Earthquake Adminis-tration(2022).Processing observational data from 2008 to 2023,anomalies were identified and summa-rized.The forecast effectiveness of this measurement was evaluated using the R value scoring,with results indicating a score of 0.6 for the velocity analysis method,deemed suitable for predictive forecasting.While the phase change analysis and trend reversal methods did not pass the R value test,they exhibited high cor-respondence rates with low rates of missed and false reports,offering insights for forecasting efforts related to this measurement.
water-tube tiltmetertechnical methods for earthquake situation consultationanomaly anal-ysisevaluation of its predication efficiencyR value test
万方数据
维普
