全球大陆7级浅源大地震强余震震级和空间分布特征
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摘要
本文收集了1967—2007年全球大陆(不包括中国大陆)29次7.0～7.9级浅源大地震的余震资料。根据震源机制解结果把这29次地震序列分为走滑型和非走滑型,其中17次是走滑型,12次是非走滑型,并分别研究了走滑型和非走滑型地震序列强余震震级分布特征和空间分布特征。研究结果表明,强余震与主震震级差服从指数分布,统计得到了走滑型地震序列B值为0.58,非走滑型地震序列B值为1.07。走滑型地震序列强余震与主震距离的优势分布范围是10～45km,而非走滑型地震序列强余震与主震的距离优势分布为20～59km,并且强余震与主震震中距服从正态分布。
We collect data for 29 earthquake sequences with MS7.0~7.9 from 1966 to 2007 in the continents of world(except China continent),and then devide them into strike-slip or no-strike-slip earthquake sequences.Seventeen earthquake sequences are strike-slip type and twelve earthquake sequences are no-strike-slip type.We study the characteristics of the magnitude difference distribution between main shocks and their strong aftershocks;and then study the spatial distribution characteristics of strong aftershocks away from their main shocks of the 29 earthquake sequences.The result shows that the magnitude difference distribution obeys intercepted exponential distribution,the B value is 0.58 for the strike-slip type earthquake sequences and 1.07 for the no-strike-slip type earthquake sequences.While the spatial distribution of strong aftershocks obeys normal distribution,the dominated distribution area of strong shocks of the strike-slip type earthquake sequences is 10~45 km and no-strike-slip type earthquake sequences is 20~59 km.
We collect data for 29 earthquake sequences with MS7.0~7.9 from 1966 to 2007 in the continents of world(except China continent),and then devide them into strike-slip or no-strike-slip earthquake sequences.Seventeen earthquake sequences are strike-slip type and twelve earthquake sequences are no-strike-slip type.We study the characteristics of the magnitude difference distribution between main shocks and their strong aftershocks;and then study the spatial distribution characteristics of strong aftershocks away from their main shocks of the 29 earthquake sequences.The result shows that the magnitude difference distribution obeys intercepted exponential distribution,the B value is 0.58 for the strike-slip type earthquake sequences and 1.07 for the no-strike-slip type earthquake sequences.While the spatial distribution of strong aftershocks obeys normal distribution,the dominated distribution area of strong shocks of the strike-slip type earthquake sequences is 10~45 km and no-strike-slip type earthquake sequences is 20~59 km.
引文
[1]http://www.seismology.harvard.edu/
[1]http://www.isc.ac.uk/search/bulletin/
[1]吕晓健,高孟潭,高战武,等.强余震与主震地面运动分布比较研究[J].地震学报,2007,29(3):295-301.
[2]Engdhal E R,villasenor A.International handbook of earthquake and engineering seismology[J].2002,81A,ISBN:1-12-440652-1.
[3]Bayasgalan,Jackson J A.Are-assessment of the faultinginthe1967Mogod earthquakes in Mongolia[J].Geophys J Int,1999,138(2):784-800.
[4]Drakopoulos J C,Ekonomides A C.Aftershock of February19,1968earthquake in Northern Aege-an Sea and related problems[J].Gageoph,1998,95(3):100-115.
[5]Robert M,Hamilton.Time-termanalysis of explosion data fromthe vicinity of the Borrego Moun-tain,California,Earthquake of9April1968[J].Bull Seismol Soc Am,1970,60(2):367-381.
[6]Stuart C.Aftershocks of the dash Baya Iran Earthquake of August[J].Bull Seismol Soc Am,1968,59(6):1823-1841.
[7]James W,Dewey.Seismicity of Northern Anatolia[J].Bull Seismol Soc Am,1976,66(30):843-868.
[8]Berberian M,Asudeh I,Bilham R G,et al.Mechanism of the main shock and aftershock study of the Tabas-E-Golshan(IRAN)earthquake of September16,1978:A preliminary report[J].Bull Seismol Soc Am,1979,69(6):1851-1859.
[9]Christopher D,Stephens,Jhon C,et al.Earthquake of February28,1978:Region recording of af-tershock and short-term,pre-earthquake seismicity[J].Bull Seismol Soc Am,1980,70(5):1607-1633.
[10]Mansour N,Hiroo A.Source parameters of1978Tabas and1979Qainat,Iran,earthquakes from long-period surface waves[J].Bull Seismol Soc Am,1981,71(4):1201-1213.
[11]Benetatos C,Kiratzi A.Finite-fault slip models for the15April1979(MW7.1)Montenegro earth-quake and its strongest aftershock of24May1979(MW6.2)[J].Tectonophysics,2006,42(1):129-143.
[12]William D,Richins,James C,et al.The1983Borah Peak,Idaho,earthquake and its aftershocks[J].Bull Seismol Soc Am,1987,77(3):694-723.
[13]Berberian M,Qorashi M,Jackson J A,et al.The Rudbar-Taromearthquake of20June1990in NW Persia:Preliminary field and seismological observations,and its tectonic significance[J].Bull Seis-mol Soc Am,1992,82(4):1726-1755.
[14]Jibson R W,Prentice C S,Borissoff B A,et al.Some observations of landslides triggered by the29April1991Racha earthquake,Republic of Georgia[J].Bull Seismol Soc Am,1994,84(4):963-973.
[15]Roquemore G R,Simila G W.Aftershocks fromthe28June1992Landers earthquake:Northern Mojave desert to the Coso volcanic field.California[J].Bull Seismol Soc Am,1994,84(3):854-862.
[16]Gomez J M,Bukchin B,Madariaga R,et al.Rupture process of the19August1992Susamyr,Kyr-gyzstan,earthquake[J].Journal of Seismology,1997,17(1):219-235.
[17]Katsumata K,Kasahara M,Masayoshi,et al.The27May1995MS7.6Northern Sakhalin Earth-quake:an earthquake on an uncertain plate boundary[J].Bull Seismol Soc Am,2004,94(1):117-130.
[18]Ghitanchi M,Raeesi M.1997年伊朗中东部加恩-比尔兼德(Gheam-Birjiand)Zirkuh余震序列分析[J].地震学报,2004,26(1):38-46.
[19]Honkura Y,Isikara A M,Oshiman N,et al.Preliminary results of multidisciplinary observations before,during and after the Kocaeli(Izmit)earthquake in the weatern part of the North Anatolian Fault Zone[J].Earth Planet Space,2000,52(2):293-298.
[20]Chien-Hsin Chang,Yih-Min Wu,Tzay-Chyn Shin,et al.Relocation of the1999Chi-Chi Earthquake in Tai wan[J].TAO,2001,11(3):581-590.
[21]Hauksson E,Lucile M,Jones,et al.The1999MW7.1Hector Mine,California,earthquake se-quence:complex conjugate strike-slip faulting[J].Bull Seismol Soc Am,2002,92(4):1154-1170.
[22]Power J A,Moran S C,Mcnutt S R,et al.Seismic response of the Kat mai volcanoes to the6De-cember1999magnitude7.0karluk Lake Earthquake,Alaska[J].Bull Seismol Soc Am,2001,91(1):57-63.
[23]Kumar A,Gupta S C,Jindal A K,et al.Aftershock activity of Bhuj earthquake of January26th,2001[J].Earth Planet Sci,2002,112(3):391-395.
[24]Emanov A A,Leskova E V,Emanov A F,et al.Aftershock process of Chuya earthquake(Gorny Altay,27September2003,MS=7.3).http://gs.sbras.ru/branch/altay-sayan/publications-ar-chive/poster-aftershock-process-of-chuya-earthquake/view.
[25]吕晓健,高孟潭,高战武,等.川滇地区强余震的震级分布和距离分布特征[J].地震学报,2008,30(4):397-404.
[26]Ustu T A.Statistical study onthe occurrence of aftershocks[J].Geophys Mag,1961,30:521-605.
[27]蒋海昆,郑建常,吴琼,等.中国大陆中强以上地震余震分布尺度的统计特征[J].地震学报,2007,29(2):151-164.
[28]蒋海昆,李永莉,曲延军,等.中国大陆中强地震序列类型的空间分布特征[J].地震学报,2006,28(4):389-398.
[29]梁小筠.正态性检验(一)[J].上海统计,2000,(10):22-25.
[30]吕晓健,高孟潭,郝平,等.中国大陆7级大地震强余震震级和空间分布特征[J].地震,2010,30(2):61-70.
[1]http://www.isc.ac.uk/search/bulletin/
[1]吕晓健,高孟潭,高战武,等.强余震与主震地面运动分布比较研究[J].地震学报,2007,29(3):295-301.
[2]Engdhal E R,villasenor A.International handbook of earthquake and engineering seismology[J].2002,81A,ISBN:1-12-440652-1.
[3]Bayasgalan,Jackson J A.Are-assessment of the faultinginthe1967Mogod earthquakes in Mongolia[J].Geophys J Int,1999,138(2):784-800.
[4]Drakopoulos J C,Ekonomides A C.Aftershock of February19,1968earthquake in Northern Aege-an Sea and related problems[J].Gageoph,1998,95(3):100-115.
[5]Robert M,Hamilton.Time-termanalysis of explosion data fromthe vicinity of the Borrego Moun-tain,California,Earthquake of9April1968[J].Bull Seismol Soc Am,1970,60(2):367-381.
[6]Stuart C.Aftershocks of the dash Baya Iran Earthquake of August[J].Bull Seismol Soc Am,1968,59(6):1823-1841.
[7]James W,Dewey.Seismicity of Northern Anatolia[J].Bull Seismol Soc Am,1976,66(30):843-868.
[8]Berberian M,Asudeh I,Bilham R G,et al.Mechanism of the main shock and aftershock study of the Tabas-E-Golshan(IRAN)earthquake of September16,1978:A preliminary report[J].Bull Seismol Soc Am,1979,69(6):1851-1859.
[9]Christopher D,Stephens,Jhon C,et al.Earthquake of February28,1978:Region recording of af-tershock and short-term,pre-earthquake seismicity[J].Bull Seismol Soc Am,1980,70(5):1607-1633.
[10]Mansour N,Hiroo A.Source parameters of1978Tabas and1979Qainat,Iran,earthquakes from long-period surface waves[J].Bull Seismol Soc Am,1981,71(4):1201-1213.
[11]Benetatos C,Kiratzi A.Finite-fault slip models for the15April1979(MW7.1)Montenegro earth-quake and its strongest aftershock of24May1979(MW6.2)[J].Tectonophysics,2006,42(1):129-143.
[12]William D,Richins,James C,et al.The1983Borah Peak,Idaho,earthquake and its aftershocks[J].Bull Seismol Soc Am,1987,77(3):694-723.
[13]Berberian M,Qorashi M,Jackson J A,et al.The Rudbar-Taromearthquake of20June1990in NW Persia:Preliminary field and seismological observations,and its tectonic significance[J].Bull Seis-mol Soc Am,1992,82(4):1726-1755.
[14]Jibson R W,Prentice C S,Borissoff B A,et al.Some observations of landslides triggered by the29April1991Racha earthquake,Republic of Georgia[J].Bull Seismol Soc Am,1994,84(4):963-973.
[15]Roquemore G R,Simila G W.Aftershocks fromthe28June1992Landers earthquake:Northern Mojave desert to the Coso volcanic field.California[J].Bull Seismol Soc Am,1994,84(3):854-862.
[16]Gomez J M,Bukchin B,Madariaga R,et al.Rupture process of the19August1992Susamyr,Kyr-gyzstan,earthquake[J].Journal of Seismology,1997,17(1):219-235.
[17]Katsumata K,Kasahara M,Masayoshi,et al.The27May1995MS7.6Northern Sakhalin Earth-quake:an earthquake on an uncertain plate boundary[J].Bull Seismol Soc Am,2004,94(1):117-130.
[18]Ghitanchi M,Raeesi M.1997年伊朗中东部加恩-比尔兼德(Gheam-Birjiand)Zirkuh余震序列分析[J].地震学报,2004,26(1):38-46.
[19]Honkura Y,Isikara A M,Oshiman N,et al.Preliminary results of multidisciplinary observations before,during and after the Kocaeli(Izmit)earthquake in the weatern part of the North Anatolian Fault Zone[J].Earth Planet Space,2000,52(2):293-298.
[20]Chien-Hsin Chang,Yih-Min Wu,Tzay-Chyn Shin,et al.Relocation of the1999Chi-Chi Earthquake in Tai wan[J].TAO,2001,11(3):581-590.
[21]Hauksson E,Lucile M,Jones,et al.The1999MW7.1Hector Mine,California,earthquake se-quence:complex conjugate strike-slip faulting[J].Bull Seismol Soc Am,2002,92(4):1154-1170.
[22]Power J A,Moran S C,Mcnutt S R,et al.Seismic response of the Kat mai volcanoes to the6De-cember1999magnitude7.0karluk Lake Earthquake,Alaska[J].Bull Seismol Soc Am,2001,91(1):57-63.
[23]Kumar A,Gupta S C,Jindal A K,et al.Aftershock activity of Bhuj earthquake of January26th,2001[J].Earth Planet Sci,2002,112(3):391-395.
[24]Emanov A A,Leskova E V,Emanov A F,et al.Aftershock process of Chuya earthquake(Gorny Altay,27September2003,MS=7.3).http://gs.sbras.ru/branch/altay-sayan/publications-ar-chive/poster-aftershock-process-of-chuya-earthquake/view.
[25]吕晓健,高孟潭,高战武,等.川滇地区强余震的震级分布和距离分布特征[J].地震学报,2008,30(4):397-404.
[26]Ustu T A.Statistical study onthe occurrence of aftershocks[J].Geophys Mag,1961,30:521-605.
[27]蒋海昆,郑建常,吴琼,等.中国大陆中强以上地震余震分布尺度的统计特征[J].地震学报,2007,29(2):151-164.
[28]蒋海昆,李永莉,曲延军,等.中国大陆中强地震序列类型的空间分布特征[J].地震学报,2006,28(4):389-398.
[29]梁小筠.正态性检验(一)[J].上海统计,2000,(10):22-25.
[30]吕晓健,高孟潭,郝平,等.中国大陆7级大地震强余震震级和空间分布特征[J].地震,2010,30(2):61-70.
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