地震带与地震统计区关系探究
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摘要
总结和分析了中国地震带划分的研究历史、目的和用途、划分原则、表现形式以及基本特点 ,指出地震带是以地震活动性区域划分研究为目的 ,它不同于概率地震危险性方法中的地震统计区的概念 .文中对地震统计区概念及其演化历史进行了分析和论述 ,认为地震统计区与地震带在统计意义、物理内涵、层次性、划分规模的要求、对空间重叠的排斥性以及划分目的和用途等方面 ,均存在较大差异 .现行工作中将两者不加区分地使用是不合适的 ,一方面造成地震统计区未形成自身的适应概率地震危险性分析方法的划分理论 ,另一方面也造成以地震活动特征和地震孕育发生环境、机制研究为目的的地震带划分研究的停滞不前 .文中最后指出 ,地震统计区划分是以地震带划分研究为基础 ,它产生并服务于考虑地震活动时空不均匀性的概率地震危险性分析方法 ,应将其与地震带概念加以明确区分 ,并加强其划分原则、理论和方法的研究 .
This paper makes a summary of status of delimitation of seismic zones and belts of China firstly in aspects of studying history, purpose, usage, delimiting principles, various presenting forms and main specialties. Then the viewpoints are emphasized, making geographical divisions by seismicity is just the most important purpose of delimiting seismic belts and the concept of seismic belt is also quite different from that of seismic statistical zone used in CPSHA method. The concept of seismic statistical zone and its history of evolvement are introduced too. Large differences between these two concepts exist separately in their statistical property, actual meaning, gradation, required scale, property of refusing to overlap each other, aim and usage of delimitation. But in current engineering practice, these two concepts are confused. On the one hand, it causes no fit theory for delimiting seismic statistical zone in PSHA to be set up; on the other hand, researches about delimitation of seismic belts with purposes of seismicity zoning and studying on structural environment, mechanism of earthquake generating also pause to go ahead. Major conclusions are given in the end of this paper, that seismic statistical zone bases on the result of seismic belt delimiting, it only arises in and can be used in the especial PSHA method of China with considering spatially and temporally inhomogeneous seismic activities, and its concept should be clearly differentiated from the concept of seismic belt.
This paper makes a summary of status of delimitation of seismic zones and belts of China firstly in aspects of studying history, purpose, usage, delimiting principles, various presenting forms and main specialties. Then the viewpoints are emphasized, making geographical divisions by seismicity is just the most important purpose of delimiting seismic belts and the concept of seismic belt is also quite different from that of seismic statistical zone used in CPSHA method. The concept of seismic statistical zone and its history of evolvement are introduced too. Large differences between these two concepts exist separately in their statistical property, actual meaning, gradation, required scale, property of refusing to overlap each other, aim and usage of delimitation. But in current engineering practice, these two concepts are confused. On the one hand, it causes no fit theory for delimiting seismic statistical zone in PSHA to be set up; on the other hand, researches about delimitation of seismic belts with purposes of seismicity zoning and studying on structural environment, mechanism of earthquake generating also pause to go ahead. Major conclusions are given in the end of this paper, that seismic statistical zone bases on the result of seismic belt delimiting, it only arises in and can be used in the especial PSHA method of China with considering spatially and temporally inhomogeneous seismic activities, and its concept should be clearly differentiated from the concept of seismic belt.
引文
①国家地震局地球物理研究所.1987.鲁南项目二级课题工作研究报告之四鲁南地区地震区划报告.
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国家地震局.1996.中国地震烈度区划(1990)概论[M].北京:地震出版社,176
国家质量技术监督局.1999.中华人民共和国国家标准GB 177411999.工程场地地震安全性评价技术规范[M ].北京:中国标准出版社,18
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胡聿贤.2001.GB183062001中国地震动参数区划图宣贯教材[M ].北京:中国标准出版社,114
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李善邦.1981.中国地震[J].北京:地震出版社,612
李志义.1974.中国地震地质概论[M ].北京:科学出版社,210
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梅世蓉.1960.中国的地震活动性[J].地球物理学报,9(1):1～18
潘华,鄢家全.1995.潜在震源区概念的界定[J].国际地震动态,(9):1～5
时振梁,环文林,武宦英,等.1973.我国强震活动和板块构造[J].地质科学,(4):281～292
时振梁,环文林,曹新玲,等.1974.中国地震活动的某些特征[J].地球物理学报,17(1):1～13
汪良谋,刘培洵,孟勇琦.1993.地震单元划分方案和原则讨论[A].见:国家地震局震害防御司编.中国地震区划文集[C].北京:地震出版社,1～9
中国地震烈度区划图编委会.1992.中国地震烈度区划图(1990)及其说明[J].中国地震,8(4):1～11
KiureghianAD ,AngAH S .1977.Afault rupturemodelforseismicriskanalysis[J].BullSeismSocAmer,67(4):1173～1194
CornellCA .1968.Engineeringseismicriskanalysis[J].BullSeismSocAmer,58(5):1583～1605
①环文林.1998.中国地震动参数区划图编制子专题工作报告,中国及邻区地震区、带划分工作报告.
国家地震局.1981.中国地震烈度区划工作报告[M ].北京:地震出版社,383
国家地震局.1996.中国地震烈度区划(1990)概论[M].北京:地震出版社,176
国家质量技术监督局.1999.中华人民共和国国家标准GB 177411999.工程场地地震安全性评价技术规范[M ].北京:中国标准出版社,18
胡聿贤.1999.地震安全性评价技术教程[M ].北京:地震出版社,387
胡聿贤.2001.GB183062001中国地震动参数区划图宣贯教材[M ].北京:中国标准出版社,114
黄汲清.1979.按大地构造观点进行中国地震地质区划的尝试[J].中国地质科学院院报,1(1):219～231
李善邦.1957.中国地震区域划分图及其说明[M ].地球物理学报,6(2):127～158
李善邦.1981.中国地震[J].北京:地震出版社,612
李志义.1974.中国地震地质概论[M ].北京:科学出版社,210
马宗晋,陈章立,薛峰.1989.中国及邻区浅源强震活动时序(1∶1400万)[A].见:国家地震局《中国岩石圈动力学地图集》编委会编.中国岩石圈动力学地图集[C].北京:中国地图出版社,29
梅世蓉.1960.中国的地震活动性[J].地球物理学报,9(1):1～18
潘华,鄢家全.1995.潜在震源区概念的界定[J].国际地震动态,(9):1～5
时振梁,环文林,武宦英,等.1973.我国强震活动和板块构造[J].地质科学,(4):281～292
时振梁,环文林,曹新玲,等.1974.中国地震活动的某些特征[J].地球物理学报,17(1):1～13
汪良谋,刘培洵,孟勇琦.1993.地震单元划分方案和原则讨论[A].见:国家地震局震害防御司编.中国地震区划文集[C].北京:地震出版社,1～9
中国地震烈度区划图编委会.1992.中国地震烈度区划图(1990)及其说明[J].中国地震,8(4):1～11
KiureghianAD ,AngAH S .1977.Afault rupturemodelforseismicriskanalysis[J].BullSeismSocAmer,67(4):1173～1194
CornellCA .1968.Engineeringseismicriskanalysis[J].BullSeismSocAmer,58(5):1583～1605
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