�شż�ж����Ӧ�ȷ����ڵ���Ԥ���е�Ӧ��

??????ж?????????????о???????????1982??2006????Z??????ж??????????????????????????Ms??5.0????????????????????????1??????25?????????????????о???????19?Σ??????11????????????????13?Σ????15?????鱨3?Σ????2?Σ?2??????????????????????????????????????????????????3??????????Ч?????R=0.44????????顣

APPLICATION OF GEOMAGNETIC LOADING-UNLOADING RESPONSE RATIO METHOD TO EARTHQUAKE PREDICTION

The relation between high anomalies of Z component of geomagnetism at seimological stations in Hebei province and its neighbouring area for earthquake of Ms≥5.0 from 1982 to 2006 is analyzed with the method of loading unloading response ratio. The result shows: 1) during the twenty five years, ninteen anomalies coincided with the standard at Hebei geomagnetic stations had been obtained, thirteen of which respond to the Ms≥5.0 earthquakes in eleven months after the earthquakes，fifteen earthquakes should be predicted，three predictions were false and two predictions were missed;2) before most of the earthquakes the spatial distribution of maximal value of the anormalies was relatively concentrated in the vicinity of epicentral area; 3) the inner check prediction efficiency indicator R= 0.44, passed the examination.