关于中强震前的应变加速释放现象(英文)
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摘要
针对中强地震前是否会出现地震活动性增强现象的问题 ,研究了 1 990～ 2 0 0 3年中国MS7 0以上地震 .对于同一个地震事件 ,考虑了多个不同的时间和空间尺度 ,结果表明 ,中强震前的地震活动性远比用简单的应变加速释放模型来描述复杂得多 .因此 ,将应变加速释放模型应用于地震危险性估计 ,仍需做更多的研究 .
Considering different spatial and temporal ranges for the same earthquake, we investigate the objectivity and generality of the phenomenon of accelerating strain release before strong earthquakes. A systematic analysis of all the earthquakes which occurred in China with M S≥7.0 from 1990 to 2003 is conducted. It is found that the real seismic activity seems much more complex than the simple pattern as described by the accelerating strain release model. Therefore, the potentials of application of accelerating strain release model to the estimation of seismic hazard are in need of future investigation.
Considering different spatial and temporal ranges for the same earthquake, we investigate the objectivity and generality of the phenomenon of accelerating strain release before strong earthquakes. A systematic analysis of all the earthquakes which occurred in China with M S≥7.0 from 1990 to 2003 is conducted. It is found that the real seismic activity seems much more complex than the simple pattern as described by the accelerating strain release model. Therefore, the potentials of application of accelerating strain release model to the estimation of seismic hazard are in need of future investigation.
引文
[1] KnopoffL ,LevshinaT ,KeilisBorokVI,etal.Increasedlong rangeintermediate magnitudeearthquakeactivitypriortostrongearthquakesinCalifornia.J .Geophys.Res.,1996,101:5779～5796
[2] SornetteD ,SammisCG .Criticalexponentsfromrenomalizationgrouptheoryofearthquakes:implicationsforearthquakeprediction.J .Phys.I.,1995,5:607～619
[3] Jaum啨SC,SykesLR .Evolvingtowardsacriticalpoint:areviewofacceleratingseismicmoment energyreleasepriortolargeandgreatearthquake.PureAppl.Geophys.,1999,155:279～306
[4] VarnesDJ .Predictingearthquakesbyanalyzingacceleratingprecursoryseismicactivity.PureAppl.Geophys.,1989,130:661～686
[5] BufeCG ,VarnesDJ.PredictivemodelingoftheseismiccycleoftheGreaterSanFranciscoBayRegion.J .Geophys.Res.,1993,98:9871～9883
[6] BufeCG ,NishenkoSP ,VarnesDJ .SeismicitytrendsandpotentialforlargeearthquakeintheAlaskaAleutianregion.PureAppl.Geophys.,1994,142:83～99
[7] VereJonesD ,RobinsonR ,YangWZ .Remarksontheacceleratedmomentreleasemodel:problemsofmodelformulationandestimation.Geophys.J .Int.,2001,144:517～531
[8] KanamoriH ,AndersonDL .Theoreticalbasisofsomeempiricalrelationinseismology.Bull.Seism.Soc.Amer.,1975,65:1073～1096
[9] BowmanDD ,OuillonG ,SammisCG ,etal.Anobservationaltestofthecriticalearthquakeconcept.J .Geophys.Res.,1998,103:24359～24372
[10] YinXC ,MoraP ,PengKY ,etal.Load unloadresponseratioandacceleratingmoment energyreleasecriticalregionscalingandearthquakeprediction.PureAppl.Geophys.,2002,159:2511～2523
[11] YangWZ ,VereJonesD ,MaL ,etal.Amethodforlocatingthecriticalregionofafutureearthquakeusingthecriticalearthquakeconcept.Earthquake,2000,20(4):28～37(inChinesewithEnglishabstract)
[12] LiuPX ,ZhengDL ,CheS ,etal.SeismicityanomaliesbeforethegreatearthquakeofMS=81inKunlunpassanditssignificancetoearthquakeprediction.ActaSeismologicaSinica(Englishedition),2003,16:219～225
[11] 杨文政,VereJonesD ,马 丽,等.一个关于临界地震的临界区域判别的方法.地震,2000,20(4):28～37
[2] SornetteD ,SammisCG .Criticalexponentsfromrenomalizationgrouptheoryofearthquakes:implicationsforearthquakeprediction.J .Phys.I.,1995,5:607～619
[3] Jaum啨SC,SykesLR .Evolvingtowardsacriticalpoint:areviewofacceleratingseismicmoment energyreleasepriortolargeandgreatearthquake.PureAppl.Geophys.,1999,155:279～306
[4] VarnesDJ .Predictingearthquakesbyanalyzingacceleratingprecursoryseismicactivity.PureAppl.Geophys.,1989,130:661～686
[5] BufeCG ,VarnesDJ.PredictivemodelingoftheseismiccycleoftheGreaterSanFranciscoBayRegion.J .Geophys.Res.,1993,98:9871～9883
[6] BufeCG ,NishenkoSP ,VarnesDJ .SeismicitytrendsandpotentialforlargeearthquakeintheAlaskaAleutianregion.PureAppl.Geophys.,1994,142:83～99
[7] VereJonesD ,RobinsonR ,YangWZ .Remarksontheacceleratedmomentreleasemodel:problemsofmodelformulationandestimation.Geophys.J .Int.,2001,144:517～531
[8] KanamoriH ,AndersonDL .Theoreticalbasisofsomeempiricalrelationinseismology.Bull.Seism.Soc.Amer.,1975,65:1073～1096
[9] BowmanDD ,OuillonG ,SammisCG ,etal.Anobservationaltestofthecriticalearthquakeconcept.J .Geophys.Res.,1998,103:24359～24372
[10] YinXC ,MoraP ,PengKY ,etal.Load unloadresponseratioandacceleratingmoment energyreleasecriticalregionscalingandearthquakeprediction.PureAppl.Geophys.,2002,159:2511～2523
[11] YangWZ ,VereJonesD ,MaL ,etal.Amethodforlocatingthecriticalregionofafutureearthquakeusingthecriticalearthquakeconcept.Earthquake,2000,20(4):28～37(inChinesewithEnglishabstract)
[12] LiuPX ,ZhengDL ,CheS ,etal.SeismicityanomaliesbeforethegreatearthquakeofMS=81inKunlunpassanditssignificancetoearthquakeprediction.ActaSeismologicaSinica(Englishedition),2003,16:219～225
[11] 杨文政,VereJonesD ,马 丽,等.一个关于临界地震的临界区域判别的方法.地震,2000,20(4):28～37
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