印度—澳大利亚板块边界带强震活动与中国大陆西部强震活动的相关性研究
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摘要
2001年以来全球8级地震呈现新的活跃态势,7.5级以上强震在空间上呈优势分布,强震相对集中在西太平洋地震带和欧亚地震带,印度—澳大利亚板块的汇聚边界带上尤为突出。2009年全球发生20次7级以上强震,其中有15次发生在印度—澳大利亚板块,近期仍具有延续全球强震活动优势空间分布。本文在以往关于印度—澳大利亚板块运动方式以及相关地震活动研究基础上,将印度—澳大利亚板块分为印度亚板块和澳大利亚板块,依据强震应变释放资料分析中国大陆西部、印度板块边界和澳大利亚板块边界之间强震活动可能的相关性。结果表明,中国大陆西部地区与印度板块边界的强震活动有较好的相关性,印度板块边界与澳大利亚板块边界活动也有一定的相关性。1914—1993年时段的中国大陆西部地区5个完整强震释放时段与印度板块地震活动表现出很强的相关性,且中国大陆西部地区强震活动相对印度板块边界地区滞后0~5年,这对于中国大陆地区强震趋势跟踪具有一定的参考意义。
Earthquakes with magnitude greater than or equal 8.0 has being active in the global world since 2001.From the distribution of MS≥7.5 earthquakes,these strong earthquakes are relatively concentrated in the western Pacific Seismic Belt and the Eurasian Seismic Zone,especially the boundary belt of convergence of India-Australian plate.Under this background,there were two earthquake of MS≥8.0 occurred in western China.During 2009 there were more than 20 earthquakes of MS≥7.0 in the whole world(as up to November 15),of which 15 still occurred in the Indian-Australian plate.So the spatial distribution of strong earthquake worldwide is still in the case as before.In this paper,based on the movement pattern of the India-Australia plate and related seismic research,using strain releases of strong earthquakes,we analyzed the possible impacts of each other between the seismic activity in western China,Indian plate and the Australian plate.The results show that there is a good correlation between the seismicity in western China and those in the boundary of Indian plate.From1914 to 1993,five complete release time periods of strong earthquakes in western China have better correlations between the seismicity in western China and those in the boundary of Indian plate.And comparatively speaking,strong earthquake activities in western China is relatively impeded by a lag of 0~5 year,which maybe useful for tracking the trend of strong earthquakes in the China continent.
Earthquakes with magnitude greater than or equal 8.0 has being active in the global world since 2001.From the distribution of MS≥7.5 earthquakes,these strong earthquakes are relatively concentrated in the western Pacific Seismic Belt and the Eurasian Seismic Zone,especially the boundary belt of convergence of India-Australian plate.Under this background,there were two earthquake of MS≥8.0 occurred in western China.During 2009 there were more than 20 earthquakes of MS≥7.0 in the whole world(as up to November 15),of which 15 still occurred in the Indian-Australian plate.So the spatial distribution of strong earthquake worldwide is still in the case as before.In this paper,based on the movement pattern of the India-Australia plate and related seismic research,using strain releases of strong earthquakes,we analyzed the possible impacts of each other between the seismic activity in western China,Indian plate and the Australian plate.The results show that there is a good correlation between the seismicity in western China and those in the boundary of Indian plate.From1914 to 1993,five complete release time periods of strong earthquakes in western China have better correlations between the seismicity in western China and those in the boundary of Indian plate.And comparatively speaking,strong earthquake activities in western China is relatively impeded by a lag of 0~5 year,which maybe useful for tracking the trend of strong earthquakes in the China continent.
引文
[1]臧绍先,宁杰远,刘宝诚,等.中国周边板块的相互作用及其对中国应力场的影响(Ⅰ)太平洋板块、菲律宾海板块的影响[A].地球物理虚报编辑委员会.八十年代中国地球物理学进展纪念傅承义教授八十寿辰[C].北京:学术书刊出版社,1989.293-306.
[2]臧绍先,吴忠良,宁杰远,等.中国周边板块的相互作用及其对中国应力场的影响(Ⅱ)印度板块的影响[J].地球物理学报,1992,35(4):428-440.
[3]梅世蓉,车时.我国现代构造应力场方向和大小的数值模拟及其与地震活动的关系[A].梅世蓉主编.梅世蓉地震科学研究论文选集[C].北京:地震出版社,1993.427-447.
[4]傅征祥,姜立新.中国大陆及邻区大尺度浅源强震空间分布的不均匀性和板块耦合的力学机制[J].中国地震,1994,13(1):1-9.
[5]汪素云,陈培善.中国及邻区现代构造应力场的数值模拟[J].地球物理学报,1980,23(1):35-45.
[6]汪素云,许忠淮,俞言祥.中国及其邻区周围板块作用力的研究[J].地球物理学报,1996,39(6):764-771.
[7]俞言祥,许忠淮,汪素云.对我国大陆地壳应力场观测结果的一种解释[A].地球物理学报编委会编.八十年代中国地球物理学进展纪念傅承义教授八十寿辰[C].北京:学术书刊出版社,1989.284-292.
[8]焦明若,张国民,车时,等.中国大陆及其周边地区构造应力场的数值计算及其在地震活动性解释上的应用[J].地震学报,1999,21(2):1 243-132.
[9]张国民,李献智,耿鲁明.印度板块北边界地震活动和中国大陆地震[J].地震,1994,24(3):1-9.
[10]陈立德,付虹.安达曼弧与缅甸、云南强震相关性研究[J].地震研究,2007,30(1):14-17.
[11]Delescluse M,Chamot-Rooke N.Instantaneous deformation and kinematics of the India-Australiaplate[J].Geophys J Int,2007,168:818-842.
[12]Lutgens F K,Tarbuck E J.Foundations of earth science(Third Edition)[M].Prentice Hall,2002.
[13]傅征祥,刘桂萍,邵志刚,等.板块构造和地震活动性[M].北京:地震出版社,2009.
[14]Prothero D R,Dott R H.Evolution of the Earth,Seventh Edition[M].McGraw-Hill,New York,2003.
[15]武艳强,江在森,杨国华,等.利用最小二乘配置在球面上整体解算GPS应变场的方法及应用[J].地球物理学报,2009,52(7):1 707-1 714.
[16]Aki.预测地震和火山喷发的地震学[M].尹祥础等译.北京:科学出版社,2009.
[17]马宏生,张国民,刘杰,等.云南地区尾波Qc值区域分布及其时间变化过程研究[A].中国地震局地预测研究所.中国地震预报探索[C].北京:地震出版社,2008.
[2]臧绍先,吴忠良,宁杰远,等.中国周边板块的相互作用及其对中国应力场的影响(Ⅱ)印度板块的影响[J].地球物理学报,1992,35(4):428-440.
[3]梅世蓉,车时.我国现代构造应力场方向和大小的数值模拟及其与地震活动的关系[A].梅世蓉主编.梅世蓉地震科学研究论文选集[C].北京:地震出版社,1993.427-447.
[4]傅征祥,姜立新.中国大陆及邻区大尺度浅源强震空间分布的不均匀性和板块耦合的力学机制[J].中国地震,1994,13(1):1-9.
[5]汪素云,陈培善.中国及邻区现代构造应力场的数值模拟[J].地球物理学报,1980,23(1):35-45.
[6]汪素云,许忠淮,俞言祥.中国及其邻区周围板块作用力的研究[J].地球物理学报,1996,39(6):764-771.
[7]俞言祥,许忠淮,汪素云.对我国大陆地壳应力场观测结果的一种解释[A].地球物理学报编委会编.八十年代中国地球物理学进展纪念傅承义教授八十寿辰[C].北京:学术书刊出版社,1989.284-292.
[8]焦明若,张国民,车时,等.中国大陆及其周边地区构造应力场的数值计算及其在地震活动性解释上的应用[J].地震学报,1999,21(2):1 243-132.
[9]张国民,李献智,耿鲁明.印度板块北边界地震活动和中国大陆地震[J].地震,1994,24(3):1-9.
[10]陈立德,付虹.安达曼弧与缅甸、云南强震相关性研究[J].地震研究,2007,30(1):14-17.
[11]Delescluse M,Chamot-Rooke N.Instantaneous deformation and kinematics of the India-Australiaplate[J].Geophys J Int,2007,168:818-842.
[12]Lutgens F K,Tarbuck E J.Foundations of earth science(Third Edition)[M].Prentice Hall,2002.
[13]傅征祥,刘桂萍,邵志刚,等.板块构造和地震活动性[M].北京:地震出版社,2009.
[14]Prothero D R,Dott R H.Evolution of the Earth,Seventh Edition[M].McGraw-Hill,New York,2003.
[15]武艳强,江在森,杨国华,等.利用最小二乘配置在球面上整体解算GPS应变场的方法及应用[J].地球物理学报,2009,52(7):1 707-1 714.
[16]Aki.预测地震和火山喷发的地震学[M].尹祥础等译.北京:科学出版社,2009.
[17]马宏生,张国民,刘杰,等.云南地区尾波Qc值区域分布及其时间变化过程研究[A].中国地震局地预测研究所.中国地震预报探索[C].北京:地震出版社,2008.
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