地震电磁辐射前兆异常特征和异常指标关系研究
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摘要
根据收集的地震电磁类资料,总结分析了地震电磁异常特征及震例的异常指标间的关系。据统计,一般对M≥3.0地震,电磁异常平均出现在震前10~45天,异常的平均传播距离为100~600 km,震级越大,异常提前出现的时间越早,异常传播的距离越大;一定范围内,震级和异常提前出现的时间、震级和异常传播的距离存在简单的线性关系。地震发生在异常出现后两个月之内的概率达93.5%。有88%的地震发生在异常结束后或异常结束当天,有98%的地震发生在异常结束后20天以内。
According to the data collected,characteristics and index relation of electromagnetic precursory anomaly of earthquakes are analyzed.By Statistics,in general,for M≥ 3.0 earthquakes,the average time of the anomaly appearing beforehand is from ten to forty-five days.And the average distance of the anomaly transition is from 100 to 600km.The bigger the earthquake magnitude is,the earlier the anomaly appears and the longer the anomaly transmits.The probability of earthquake occurrence within two months after the anomaly appears is 93.5%.The probability of the earthquake occurrence the day or after the anomaly is over is 88% and 98% for earthquakes occurrence within 20 days after the anomaly is over.
According to the data collected,characteristics and index relation of electromagnetic precursory anomaly of earthquakes are analyzed.By Statistics,in general,for M≥ 3.0 earthquakes,the average time of the anomaly appearing beforehand is from ten to forty-five days.And the average distance of the anomaly transition is from 100 to 600km.The bigger the earthquake magnitude is,the earlier the anomaly appears and the longer the anomaly transmits.The probability of earthquake occurrence within two months after the anomaly appears is 93.5%.The probability of the earthquake occurrence the day or after the anomaly is over is 88% and 98% for earthquakes occurrence within 20 days after the anomaly is over.
引文
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[14]陈智勇,杜晓泉.地震电磁波前兆特征[J].地震电磁观测与研究,1989,10(5):40-43.
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[17]郝锦绮,钱书清,高金田,等.岩石破裂过程中的超低频电磁异常[J].地震学报,2003,25(1):102-111.
[18]关华平,陈智勇.地震与电磁辐射关系的定量研究[J].地震,1996,16(2):168-176.
[2]周本诚,张碧琼,卢开南.四川省电磁波台网建设及电磁波短临预报指标初探[J].地震学报,1994,16(增刊):132-141.
[3]李桂青.单台电磁波异常与地震短临预报的研究[J].山西地震,1999(2):46-48.
[4]阎计明.电磁脉冲干扰的识别及异常特征[J].山西地震,2000(3):22-25.
[5]李桂青,刘兆友.濮阳台电磁波异常与地震活动关系的研究[J].高原地震,2000,18(2):206-209.
[6]关华平,韩凤银,肖武军,等.超低频(ULF)电磁辐射观测与资料处理方法[J].地震,2003,23(2):86-93.
[7]李美,程文海,侯万凯,等.苏家屯台电磁辐射异常与地震关系研究[J].中国地震,2006,22(1):76-84.
[8]关华平,肖武军,李美.中国地震电磁扰动观测研究[J].地震,2007,27(增刊):72-79.
[9]吴伯荣,张玉芳,吴永信.甘肃省及邻区MS4.0以上地震前的电磁波异常特征[J].西北地震学报,1993,15(4):36-44.
[10]黄维有,哈斯巴根.内蒙古通辽波的映震特征[J].山西地震,2001(2):32-34.
[11]牛继荣,张环,张富芳.天祝电磁波地震前异常信息变化初探[J].高原地震,2004,16(3):42-46.
[12]李吾先,金明培,马俊康.云南地区强震电磁波异常特征及其预报意义[J].地震,2003,23(2):77-84.
[13]徐东红,肖爱华.河北地区与地震有关的电磁扰动现象[J].地震,2007,27(增刊):80-87.
[14]陈智勇,杜晓泉.地震电磁波前兆特征[J].地震电磁观测与研究,1989,10(5):40-43.
[15]董旭光,苏鸾声.电磁波手段中强震前短临异常特征研究[J].东北地震研究,1998,14(4):46-53.
[16]燕明芝,杨立明,白亚平.天祝电磁波前兆异常信息对地震预报的影响[J].地震地磁观测与研究,2001,22(5):67-70.
[17]郝锦绮,钱书清,高金田,等.岩石破裂过程中的超低频电磁异常[J].地震学报,2003,25(1):102-111.
[18]关华平,陈智勇.地震与电磁辐射关系的定量研究[J].地震,1996,16(2):168-176.
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