Voronoi图和双曲线联合方法在地震快速定位中的应用
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摘要
基于Voronoi图和地震震中近似满足双曲线分布,提出了一种联合应用V图和双曲线的地震预警快速定位方法。并对青海地震台网记录的地震进行了重新定位处理。研究结果发现,该地震定位方法能满足地震速报的精度要求,在时效性上也可满足地震预警的需要。该方法在地震预警方面有应用前景。
Based on the concept of the Voronoi diagram and distribution of earthquake conforming to the distribution of hyperbola approximately,a new methods for earthquake rapid location in the earthquake early warning is presented that using the V-diagram and hyperbola jointly.The earthquakes recorded by the digital seismic network of Qinghai province are relocated with the new method.The result shows that the new method can meet the need of location precision and the timeliness of rapid report in the earthquake early warning,and is better than other ways.So the method has a good prospect of application in the earthquake early warning system.
Based on the concept of the Voronoi diagram and distribution of earthquake conforming to the distribution of hyperbola approximately,a new methods for earthquake rapid location in the earthquake early warning is presented that using the V-diagram and hyperbola jointly.The earthquakes recorded by the digital seismic network of Qinghai province are relocated with the new method.The result shows that the new method can meet the need of location precision and the timeliness of rapid report in the earthquake early warning,and is better than other ways.So the method has a good prospect of application in the earthquake early warning system.
引文
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[19]Espinosa-Aranda J M,A Cuellar,A Garcia,et al.Evolutionof the Mexican Seismic Alert System(SASMEX)[J].Seis-mological Research Letters,2009,80(5):694-706.
[20]Zollo G Iannaccone,M Lancieri.Earthquake early warningsystem in southern Italy:Methodologies and performance e-valuation[J].Geophysical research letters,2009,36:L00B07.
[21]Richard M Allen,Holly Brown,et al.Real-time earthquakedetection and hazard assessment by ElarmS across California[J].Geophysical research letters,2009,36:L00B08.
[2]Allen R M,Gasparini P,Kamigaichi O,et al.The Status ofEarthquake Early Warning around the World An IntroductoryOverview[J].Seismological Research Letters,2009,80(5):682-693.
[3]Satriano C,et al.Earthquake early warning:Concepts,meth-ods and physical grounds[J].Soil Dyn.Earthquake Eng.,2010,doi:10.1016/j.soildyn.2010.07.007
[4]Paolo Gasparini,Gaetano Manfredi,et al.Earthquake EarlyWarning System[M].Italy Napoli:Christine Adolph,2007.
[5]Nai-Chi Hsiao,Yih-Min Wu,et al.Development of earth-quake early warning system in Taiwan[J].Geophysical re-search letters,2009,36:L00B02.
[6]Espinosa-Aranda J M,A Jimenez,G Ibarrola,et al.MexicoCity Seismic Alert System[J].Seismological Research Letters,1995,66:42-52.
[7]Brown H M,Allen R M.Testing ElarmS in Japan[J].Seismo-logical Research Letters,2009,80(5):727-739.
[8]田玥,陈晓非.地震定位研究综述[J].地球物理学进展,2002,17(1):147-155.
[9]杨文东,金星,李山有,等.地震定位研究及应用综述[J].地震工程与工程振动,2005,25(1):14-21.
[10]C Lomnitz.地震定位的三条原理[J].世界地震译丛,2006,(5):44-52.
[11]I Bondar,S C Myers,E R Engdahl,et al.地震台网的震中定位精度判据[J].世界地震译丛,2006,(4):38-55.
[12]M I Shamos,D Hoey.Closest-point Problems[A]∥Proceed-ing of the 16th Annual Symposium on Foundation of Comput-er Science[C].Washington DC.,USA:IEEE Computer Soci-ety,1975:151-162.
[13]Claudio Satriano,Anthony Lomax,Aldo Zollo.Optimal,Real-time Earthquake Location for Early Warning[A]∥Earth-quake Early Warning Systems[G].Springer,2007:85-96.
[14]Claudio Satriano,Anthony Lomax,et al.Real-time Evolu-tionary Earthquake Location for Seismic Early Warning[J].Bulletin of the Seismological Society of America,2008,98(3):1482-1494.
[15]P Rydelek,J Pujol.采用双台子台阵方法的实时地震预警[J].世界地震译丛,2005,(3):1-6.
[16]蔡学林,朱介寿,曹家敏,等.中国大陆及邻区岩石圈地壳三维结构与动力学型式[J].中国地质,2007,34(4):543-557.
[17]马强.地震预警技术研究及应用[D].哈尔滨:中国地震局工程力学研究所,2008.
[18]赵冰,刘希强.全球地震早期预警研究综述[J].西北地震学报,2011,33(4):392-402.
[19]Espinosa-Aranda J M,A Cuellar,A Garcia,et al.Evolutionof the Mexican Seismic Alert System(SASMEX)[J].Seis-mological Research Letters,2009,80(5):694-706.
[20]Zollo G Iannaccone,M Lancieri.Earthquake early warningsystem in southern Italy:Methodologies and performance e-valuation[J].Geophysical research letters,2009,36:L00B07.
[21]Richard M Allen,Holly Brown,et al.Real-time earthquakedetection and hazard assessment by ElarmS across California[J].Geophysical research letters,2009,36:L00B08.
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