用模式识别方法研究强震发生的动力因子
APPLICATION OF PATTERN RECOGNITION TO THE STUDY OF THE DYNAMIC FACTOR OF OCCURRENCE OF LARGE EARTHQUAKES
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摘要: 用模式识别方法研究了大地震的发生时间与中等地震活动性、太阳活动水平、地球自转之间的关系.由模式识别所得的性质提出,大地震前中等地震活动达到一定水平是大地震可能发生的重要性质.而太阳活动极值前后及自转加速度变化较大时段可能触发大地震.Abstract: A pattern recognition algorithm has been used to correlate the occurrence time of a large earthquake to intermediate-size earthquake activity, to the level of sunspot activity and the rotation of the earth. The characteristics given by pattern recognition suggest that, before the occurrence of a large earthquake when the level of intermediate earthquake activity increases to a definite level, may be an important characteristic for the occurrence of that large earthquake. As well around the extreme values of sunspot activity and the time interval of relatively large variations of the acceleration of rotation of the earth may also trigger large earthquakes.
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[1] 王碧泉等,大震前地震活动的图象识别,地震学报,4, 2, 105——115, 1982.
[2] L. M. Gelfand et al., Pattern Recognition Applied to Strnng Earthquakes in California, Phyricr of the earth and plranetrary, 11, 3, 227——283, 1976.
[3] P. Briggs et al., Pattern Recognition Applied to Earthquake Epicenters in California and Nevada, Geol. Soc. of Am. Bull., 88, 2, 161——173, 1977.
[4] 王碧泉,图象识别在地震学中的应用,地震科学研究,1, 1981.
[5] 黄录基、郭恩华,太阳活动与地震,地震战线,5, 1975.
[6] 罗葆荣,云南地震与太阳活动的相关分析,北京天文台台刊,9,1977.
[7] 北京天文台天津纬度站极移组,地球自转不均匀性与中震、深震关系的一点探讨,北京天文台台刊,2, 1973.
[8] 张焕志,地震对地球自转的影响,北京天文台台刊,5, 1975.
[9] F. Press & P. Briggs, Chandler Wobble, Earthquakes, Rotation, and Geomagnetic Changes, Nat:tre, 7.56,5515,270——273, 1975.[1] 王碧泉等,大震前地震活动的图象识别,地震学报,4, 2, 105——115, 1982.
[2] L. M. Gelfand et al., Pattern Recognition Applied to Strnng Earthquakes in California, Phyricr of the earth and plranetrary, 11, 3, 227——283, 1976.
[3] P. Briggs et al., Pattern Recognition Applied to Earthquake Epicenters in California and Nevada, Geol. Soc. of Am. Bull., 88, 2, 161——173, 1977.
[4] 王碧泉,图象识别在地震学中的应用,地震科学研究,1, 1981.
[5] 黄录基、郭恩华,太阳活动与地震,地震战线,5, 1975.
[6] 罗葆荣,云南地震与太阳活动的相关分析,北京天文台台刊,9,1977.
[7] 北京天文台天津纬度站极移组,地球自转不均匀性与中震、深震关系的一点探讨,北京天文台台刊,2, 1973.
[8] 张焕志,地震对地球自转的影响,北京天文台台刊,5, 1975.
[9] F. Press & P. Briggs, Chandler Wobble, Earthquakes, Rotation, and Geomagnetic Changes, Nat:tre, 7.56,5515,270——273, 1975.
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