【摘要】 应用地磁加卸载响应比方法,研究河北省各地磁台1982—2006年地磁Z分量加卸载响应比的高值异常与河北省及邻近地区Ms≥5.0地震之间的对应关系。结果表明:1)在这25年内,共出现了符合判据标准的异常19次,在其后11个月内对应地震仍有13次,应报15个,虚报3次,漏报2次;2)大多数地震之前的异常极大值的空间分布都相对集中于震中区附近;3)其内检预报效能指标R=0.44,通过检验。更多还原

【Abstract】 The relation between high anomalies of %Z % component of geomagnetism at seimological stations in Hebei province and its neighbouring area for earthquake of %M %s≥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 %M %s≥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.更多还原