全球不同地区强震与地球自转之间的关系分析
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摘要
对全球及一些地区地震在地球自转速率长周期变化的加速和减速段里年发生次数进行了分析,得到的结果表明,就全球地震而言,减速期7级以上地震年发生次数似乎略高于加速期,8级以上地震年发生次数似乎相当,没有明显差异,8.5级以上地震年发生次数似乎比加速期里高。太平洋东带和太平洋北带的地震,在减速期的年发生次数似乎一致地比加速期略高,而太平洋西带和太平洋南带的地震,在减速期的年发生次数似乎一致地比加速期略低。亚欧带的地震发生在减速期的略比加速期的少,亚欧带东段、大三角地震活动区和亚欧带西段的地震,在减速期的年发生次数似乎一致低于加速期的。对于川滇及缅甸北部地区的地震,在高海拔地区,在减速期间年发生次数为加速期间的3.8倍,而在低海拔地区发生的3次地震都在加速期间。在青藏块体及印度北部地区,加速期间年发生次数约为减速期间的4倍,表明这个地区7.5级以上地震与地球自转加速之间存在着强烈的相关性。台湾及附近地区,7.5级以上地震,在加速期间年发生次数约为减速期间的2.4倍,显示这个地区7.5级以上地震与地球自转加速之间存在着强烈的相关性。上述结果对深入认识地震与地球自转之间的关系具有一定意义。
Based on analysis of the annual numbers of earthquakes occurring in the deceleration and acceleration phases of long-period variation in earth rotation for some regions of the world,some results are obtained: In the whole world,the annual number of earthquakes in the deceleration phase is a little higher than that in the acceleration phase for earthquakes of M≥7.0,while there is no obvious difference for earthquakes of M≥8.0;For earthquakes of M≥8.5,the annual number of the earthquakes occurring in the deceleration phase is higher than that in the acceleration phase.For the eastern and northern Pacific Ocean seismic belt,it seems that the annual number of earthquakes occurring in the deceleration phase is congruously higher than that in the acceleration phase,but for the western and southern Pacific Ocean seismic belt,the annual number of earthquakes occurring in the deceleration phase is congruously a little lower than that in the acceleration phase.In the Europe-Asia seismic belt,the number of earthquakes occurring in the deceleration phase is a little lower than that in the acceleration phase.In the eastern and western segments of the Europe-Asia seismic belt and the Great Triangle seismic region,the annual number of earthquakes occurring in the deceleration phase is congruously lower than that in the acceleration phase.In the region including Sichuan and Yunnan provinces of China and northern Myanmar,the annual number of earthquakes occurring in the deceleration phase is 3.8 times as high as that in the acceleration phase for the area of higher sea level,and 3 earthquakes in the area of lower sea level all occurred in the acceleration phase.In the Qinghai-Tibet area and northern India,the annual number of earthquakes of MS≥7.5 occurring in the acceleration phase is 4 times as high as that in the deceleration phase,indicating that the earthquakes of MS≥7.5 in this region is highly related to the acceleration of rotation of the Earth.In the region around Taiwan,the annual number of earthquakes of MS≥7.5 occurring in the acceleration phase is 2.4 times as high as that in the deceleration phase,which shows that the earthquakes of MS≥7.5 in this region is highly related to the acceleration of rotation of the Earth.The results obtained above are of certain significance to further understanding the relationship between earthquakes and earth rotation.
Based on analysis of the annual numbers of earthquakes occurring in the deceleration and acceleration phases of long-period variation in earth rotation for some regions of the world,some results are obtained: In the whole world,the annual number of earthquakes in the deceleration phase is a little higher than that in the acceleration phase for earthquakes of M≥7.0,while there is no obvious difference for earthquakes of M≥8.0;For earthquakes of M≥8.5,the annual number of the earthquakes occurring in the deceleration phase is higher than that in the acceleration phase.For the eastern and northern Pacific Ocean seismic belt,it seems that the annual number of earthquakes occurring in the deceleration phase is congruously higher than that in the acceleration phase,but for the western and southern Pacific Ocean seismic belt,the annual number of earthquakes occurring in the deceleration phase is congruously a little lower than that in the acceleration phase.In the Europe-Asia seismic belt,the number of earthquakes occurring in the deceleration phase is a little lower than that in the acceleration phase.In the eastern and western segments of the Europe-Asia seismic belt and the Great Triangle seismic region,the annual number of earthquakes occurring in the deceleration phase is congruously lower than that in the acceleration phase.In the region including Sichuan and Yunnan provinces of China and northern Myanmar,the annual number of earthquakes occurring in the deceleration phase is 3.8 times as high as that in the acceleration phase for the area of higher sea level,and 3 earthquakes in the area of lower sea level all occurred in the acceleration phase.In the Qinghai-Tibet area and northern India,the annual number of earthquakes of MS≥7.5 occurring in the acceleration phase is 4 times as high as that in the deceleration phase,indicating that the earthquakes of MS≥7.5 in this region is highly related to the acceleration of rotation of the Earth.In the region around Taiwan,the annual number of earthquakes of MS≥7.5 occurring in the acceleration phase is 2.4 times as high as that in the deceleration phase,which shows that the earthquakes of MS≥7.5 in this region is highly related to the acceleration of rotation of the Earth.The results obtained above are of certain significance to further understanding the relationship between earthquakes and earth rotation.
引文
[1]马宗晋,陈章立,傅征祥,等.亚欧地震系的地震构造特征.中国科学,1980,9:883-890
[2]苏鸾声.全球7级大震与我国地震活动的关系.地震研究,1995,18(2):143-150
[3]郑大伟,周永宏.地球自转变化与全球地震活动关系的研究.地震学报,1995,17(1):25-30
[4]马利华,韩延本,尹志强.全球强震的分布及其与地球自转速率变化的关系.天文研究与技术(国家天文台刊),2007,4(4):406-411
[5]陈学忠,赵晓燕,李艳娥,等.从2008年5月12日四川汶川地震看地震的成因.防灾科技学院学报,2009,11(2):7-12
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[7]张愈,张慧雯.地球自转不规则变化与苏皖及其附近地区中强地震的相关性.地震学刊,2000,20(3):51-54
[8]韩延本,郭增建,赵娟,等.地球自转速率变化与中国西部的大地震.国际地震动态,2003(6):1-5
[9]安欧.全球大震活动与地球自转速率的关系.华北地震科学,1985,3(1):56-67
[10]周永宏,郑大伟.地球自转变化与中国大陆地震活动关系的初步分析.上海天文台年刊,1994,15:1-8
[11]Zharov V E.Connection of the Earth’s rotation with the atmospheric angular momentum and thestrongest earthquakes.Astron.Astrophys.,Trans,1996,9:317-327
[12]郭恒祖.二十世纪以来中国西部和邻区的大地震活动与地球自转的关系.内陆地震,1991,3:267-271
[13]陈翠仙.20世纪中国8级大地震与日长关系的初析.云南天文台台刊,1992,4:51-53
[14]李启斌,肖兴华,李致森.中国大陆强地震与地球自转角速度长期变化关系的初步分析.地球物理学报,1973,16:71-80
[15]季洪钦,尤淑如.地球自转不均匀性与全球中震、深震能量的相关分析及其力学关系.天文学报,1988,29(4):326-332
[16]薄万举,王广余.地球自转、断层形变与地震活动关系研究.大地测量与地球动力学,2006,26(2):43-47
[17]高建国.地球自转角速度变化触发地震的初步讨论.科学通报,1981,26(5):293-296
[2]苏鸾声.全球7级大震与我国地震活动的关系.地震研究,1995,18(2):143-150
[3]郑大伟,周永宏.地球自转变化与全球地震活动关系的研究.地震学报,1995,17(1):25-30
[4]马利华,韩延本,尹志强.全球强震的分布及其与地球自转速率变化的关系.天文研究与技术(国家天文台刊),2007,4(4):406-411
[5]陈学忠,赵晓燕,李艳娥,等.从2008年5月12日四川汶川地震看地震的成因.防灾科技学院学报,2009,11(2):7-12
[6]虞志英,罗时芳,许世远,等.地球自转季节性变化与地震关系的初步分析.地球物理学报,1994,17:44-50
[7]张愈,张慧雯.地球自转不规则变化与苏皖及其附近地区中强地震的相关性.地震学刊,2000,20(3):51-54
[8]韩延本,郭增建,赵娟,等.地球自转速率变化与中国西部的大地震.国际地震动态,2003(6):1-5
[9]安欧.全球大震活动与地球自转速率的关系.华北地震科学,1985,3(1):56-67
[10]周永宏,郑大伟.地球自转变化与中国大陆地震活动关系的初步分析.上海天文台年刊,1994,15:1-8
[11]Zharov V E.Connection of the Earth’s rotation with the atmospheric angular momentum and thestrongest earthquakes.Astron.Astrophys.,Trans,1996,9:317-327
[12]郭恒祖.二十世纪以来中国西部和邻区的大地震活动与地球自转的关系.内陆地震,1991,3:267-271
[13]陈翠仙.20世纪中国8级大地震与日长关系的初析.云南天文台台刊,1992,4:51-53
[14]李启斌,肖兴华,李致森.中国大陆强地震与地球自转角速度长期变化关系的初步分析.地球物理学报,1973,16:71-80
[15]季洪钦,尤淑如.地球自转不均匀性与全球中震、深震能量的相关分析及其力学关系.天文学报,1988,29(4):326-332
[16]薄万举,王广余.地球自转、断层形变与地震活动关系研究.大地测量与地球动力学,2006,26(2):43-47
[17]高建国.地球自转角速度变化触发地震的初步讨论.科学通报,1981,26(5):293-296
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