摘要
In this paper, we investigate the precursors of large earthquakes in the eastern region of Taiwan by means of the reverse tracing of precursors. We discuss the parameters which are suitable for the seismic chains and intermedi- ate-term patterns in this region and obtain the threshold of the patterns. Applying the linear discriminate method to the intermediate-term patterns of seismic chains, we present an approach for exploring the precursors of large earthquakes. The results show that this method can reduce the false alarm rate for large earthquakes in this region, and the reverse tracing of precursors can be applied to the eastern region of Taiwan.
In this paper, we investigate the precursors of large earthquakes in eastern Taiwan region by means of the reverse tracing of precursors, find the suitable parameters for seismic chains and intermediate-term patterns, and get the threshold of the patterns. Applying the linear discriminant approach to the intermediate-term patterns of seismic chains, we present an approach to find the precursors of large earthquakes. The result of data analysis show that the method can decrease the mistake rate of false predictor for large earthquakes, and the Reverse Tracing of Precursors is suitable for eastern Taiwan region.
出处
《地震学报》
CSCD
北大核心
2008年第1期82-89,共8页
Acta Seismologica Sinica
基金
国家自然科学基金项目(10371012)
关键词
地震前兆
前兆逆向追踪
地震链
线性判别
earthquake precursor
reverse tracing of precursor
seismic chain
linear discriminant
