新10号泉硫化物前兆异常特征分析
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摘要
运用mapsis软件前兆异常分析中的差分、从属函数等计算方法对新10号泉硫化物测值进行异常识别。结果表明:(1)差分和从属函数异常以高值异常为主;(2)差分异常对应近场MS≥5地震对应率为100%(6/6),对远场MS≥7地震对应率为66.7%(4/6);(3)差分和从属函数异常最大量对近场MS≥5地震的震级和震中距相关性不明显;(4)差分和从属函数异常有一定同步性。
Using difference,subordinate function methods in Mapseis soft to analyze the abnormal change of sulfid in New No.10 spring,the result shows,(1)the abnormal shape is high value anomaly;(2) the difference abnormity is high value for the earthquakes with MS≥5 in the near region,low value for the earthquakes with MS≥7 in the far region;(3)the relation between max-value of abnormity and magnitude,epicenter distance of MS≥5 earthquakes is not evident;(4)there is certain synchronicity between difference and subordinate function abnormity.
Using difference,subordinate function methods in Mapseis soft to analyze the abnormal change of sulfid in New No.10 spring,the result shows,(1)the abnormal shape is high value anomaly;(2) the difference abnormity is high value for the earthquakes with MS≥5 in the near region,low value for the earthquakes with MS≥7 in the far region;(3)the relation between max-value of abnormity and magnitude,epicenter distance of MS≥5 earthquakes is not evident;(4)there is certain synchronicity between difference and subordinate function abnormity.
引文
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[3]任晓霞,任佳,闫熠,等.赤城台水位异常与地震关系的研究[J].地震地磁观测与研究,2002,25(6):91-96.
[4]叶秀薇.粤闽地区地下流体从属函数异常与地震关系的初步研究[J].防灾减灾工程学报,2004,24(2):196-201.
[5]崔勇,黄辅琼,李新勇.新04号井(泉)流体测项长程趋势变化分析[J].内陆地震2,006,20(1):81-87.
[6]张素欣,郑云贞,张子广.河北阳原2井水氡资料分析[J].山西地震2,003,12(1):18-20.
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