摘要
采用A(b)值空间扫描方法对1975年以来东南沿海地区ML2.3到ML4.9级地震资料进行了研究,统计分析了MS4.6级以上地震前A(b)值异常情况,结果显示大多数MS4.6级以上地震发生前的1～3年内,震中周围出现A(b)≥5.0的高值异常区域。R值检验结果为0.46。
The data of earthquakes from M L 2.3 to M L 4.9 in the Southeast Coastal Region since 1975 are analyzed by means of A(b)-value spatial scan. The A(b)- value anomalies before the earthquakes with MS?Y4.6 occured are collected in numbers and studied. The result shows there were high-value anomalous areas with A(b)?Y5.0 around the epicenter one to three years before most MS,3/44.6 earthquakes occured. The R-value test comes to 0.46.
出处
《华南地震》
2005年第2期88-92,共5页
South China Journal of Seismology
关键词
中期预报
东南沿海地区
A(b)值
应力窗口
Medium-term prediction,'The Southeast Coastal Region,' A(b)-value,'Stress window
