低纬度环球剪切带及其与环太平洋带大地震的幕式活动
摘要
地球南、北半球总的运动态势很不协调,其间存在一条运动不协调带.在地表,该带由13条以走滑为主的大型断裂带组成,称之为低纬度环球剪切带(E系).统计分析E系和环太平洋带(P系)1900~2003年间MW≥7.5的时间分布,发现两者本身和两者之间都存在15~18年的准周期性交替活动.对这一现象的成因作了初步探讨.
引文
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2Fedotov S A.The seismic cycle,quantitative seismic zoning,and long-term seismic forecasting.In:Medvedev S V,ed.Seismic Zoning in the USSR.Izdatel'stvo Nauka,Moscow,1968,133~166
3Mogi K.Active periods in the world’s chief seismic belts.Tec-tonophysics,1974,22:265~282
4Ma Z,Jiang M.Strong earthquake period and episodes in China.Earthquake Research in China,1987,1(4):505~510
5Ma Z,Fu Z,Zhang Y,et al.Earthquake Prediction,Nine Major Earthquake in China(1966~1976).Beijing and Berlin:Seismol-ogical Press and Springer-Verlag,1989.201~310
6Kanamori H.The energy release in great earthquakes.Jour Geo-phys Res,1977,82:2982~2983
7Pacheco J F,Sykes L R.Seismic moment catalog of large shallow earthquakes,1900to1989.Bull Seism Soc Am,1992,82(3):1306~1349
8马宗晋,陈强.全球地震构造系统与地球的非对称性.中国科学,B辑,1988,(10):1092
9Ma Z,Gao X,Ren J.The features of contemporary global tecton-ics and its dynamic explantion(in Chinese).Quaternary Sciences,1992,(4):293~305
10Hanks T C,Kanamori H.A moment magnitude scale.J Geophys Res,1979,84:2348~2350
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