青藏高原内部地震活动研究
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摘要
文章对国际地震中心陨杂悦(International Seismological Centre)和美国地质调查所震中初定报告孕阅耘(The Preliminary Determination of Epicentres Bulletin)提供的地震数据资料,以及西藏大学地震台网收集的地震数据资料进行分析研究。结果显示,青藏高原属于地质构造与地震活动极为活跃的区域,自1900年以来曾发生过3780次以上地震;青藏高原内部的地震绝大部分都属于浅源地震(源深度小于50km),以拉萨为中心的周边地区属浅源地震的高频率发震区。
In the present paper,the seismic data provided by ISC,PDE and collected by TBU were analyzed.The results showed that the Qinghai-Tibet Plateau has been a very active area of geological structure and seismic activity and since 1900 there had been earthquake more than 3780 times;the most of the earthquake in the Plateau is the shallow earthquake(source depth less than 50km),and Lhasa and its surrounding area is the most active regions of shallow earthquakes.
In the present paper,the seismic data provided by ISC,PDE and collected by TBU were analyzed.The results showed that the Qinghai-Tibet Plateau has been a very active area of geological structure and seismic activity and since 1900 there had been earthquake more than 3780 times;the most of the earthquake in the Plateau is the shallow earthquake(source depth less than 50km),and Lhasa and its surrounding area is the most active regions of shallow earthquakes.
引文
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[6]Gutenberg.B and Richter C.F.Seismicity of the earth and associated phenomena[M].New Jersey:Princeton University pressPrinceton,1954.
[7]Havskov.J and Ottem?ller L,SEISAN:the earthquake analysis software[M].Seismological Society of America,1999.
[8]Hirn.A,1998.Features of the Crust-mantle structure of Himalayas-Tibet:A comparison with seismic traverses of Alpine andPyrenean and variscan orogenic belts[J].Royal society publishing,1988,326(1589).
[9]李兴海,谢力杰,等.西藏自治区地震目录:自公元642-1995[M].拉萨:西藏人民出版社,1998.
[10]Molnar,P.,and P.Tapponnier Relation of the tectonics of Eastern China to the India-Eurasian collision:Application ofslip-line field theory to large-scale control tectonics[J].Geology,1977(5).
[11]Molnar,P.,and P.Tapponnier.Active tectonics of Tibet[J].Journal of Geophysical Research,1978,83.
[12]Ni.J.,and J.E.York.Late Cenozoic extensional tectonics of the Tibetan plateau[J].Journal of Geophysical Research,1978.
[13]Singh S.K,Reichele M and Havsko J.Magnitude and epicenter estimations of Mexican earthquakes from isoseismic maps[J].Geofisica internacional,1980,19.
[14]吴珍汉,吴忠海,等.青藏铁路沿线活动断裂与地质灾害图集[M].北京:地震出版社,2005.
[15]西藏自治区科学技术委员会,国家地震局科技监测司.西藏察隅当雄大地震[M].拉萨:西藏人民出版社,1988.
[16]张国民.浅源地震破坏力大[N/OL].三峡晚报,2008-05-13[2011-10-24].http://ctdsb.cnhubei.com/.
[2]Armijo,Rolando;Tapponnier,Paul and Tonglin Han,Late Cenozoic right-lateral strike-slip faulting in southern Tibet[J].Journalof Geophysical Research,1989,94(3).
[3]Banerjee P and Bürgmann R..Convergence across the northwest Himalaya from GPS measurements[J].Geophysical researchletters,2002,29(13).
[4]Dewey,J.F.&Burke,K.G.A.Tibetan,Variscan and Precambrian basement reactivation:products of a continental collision[J].The Journal of Geology,1973,81(6).
[5]Dewey,J.F;Robert M.Shackleton;Chang Cengfa;Sun Yiyin.The tectonic evolution of the Tibetan plateau[J].Royal societypublishing,1988,327(1594).
[6]Gutenberg.B and Richter C.F.Seismicity of the earth and associated phenomena[M].New Jersey:Princeton University pressPrinceton,1954.
[7]Havskov.J and Ottem?ller L,SEISAN:the earthquake analysis software[M].Seismological Society of America,1999.
[8]Hirn.A,1998.Features of the Crust-mantle structure of Himalayas-Tibet:A comparison with seismic traverses of Alpine andPyrenean and variscan orogenic belts[J].Royal society publishing,1988,326(1589).
[9]李兴海,谢力杰,等.西藏自治区地震目录:自公元642-1995[M].拉萨:西藏人民出版社,1998.
[10]Molnar,P.,and P.Tapponnier Relation of the tectonics of Eastern China to the India-Eurasian collision:Application ofslip-line field theory to large-scale control tectonics[J].Geology,1977(5).
[11]Molnar,P.,and P.Tapponnier.Active tectonics of Tibet[J].Journal of Geophysical Research,1978,83.
[12]Ni.J.,and J.E.York.Late Cenozoic extensional tectonics of the Tibetan plateau[J].Journal of Geophysical Research,1978.
[13]Singh S.K,Reichele M and Havsko J.Magnitude and epicenter estimations of Mexican earthquakes from isoseismic maps[J].Geofisica internacional,1980,19.
[14]吴珍汉,吴忠海,等.青藏铁路沿线活动断裂与地质灾害图集[M].北京:地震出版社,2005.
[15]西藏自治区科学技术委员会,国家地震局科技监测司.西藏察隅当雄大地震[M].拉萨:西藏人民出版社,1988.
[16]张国民.浅源地震破坏力大[N/OL].三峡晚报,2008-05-13[2011-10-24].http://ctdsb.cnhubei.com/.
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