全球巨震的天文背景
|
摘要
分析了全球8.5 M以上巨震的天文背景,分析结果表明,这些巨震大都发生在处于月亮轨道运动所对应的地震活跃期的地震带区,太阳活动的下降段与地球自转的加速期。这是就天文因素的长周期变化而言。对于天文因素的短周期变化,无论是对于地方时,地方恒星时与月相,都有集中发生在某一段时间的现象;对于地球自转的短周期变化更是比较明显,要么发生在其变化最快时期,要么发生在其变化的最慢时期。这一切都表明,这些地震的发生是受天文因素的影响的。天文因素是外界发震动力之一,长周期变化的天文因素可能是对地震的孕育、发展与发生起着调制作用,而短期变化的天文因素则是当其作用于远离平衡态的发震构造上时,引起系统的巨涨落,从而诱发地震。
This paper analyzes the astronomical background of the global huge earthquakes with M≥8.5.The result shows that most of the earthquakes has occurred in the seismic belts(regions) where is being corresponding seismic active period with the lunar path,solar active falling period and accelerating period of earth rotation.This is as for the variation of long period of astronomical factors.For the variation of short period of astronomical factors,whether for local time or local sidereal time and lunar phase there is the phenomenon of occurrence of concentrating a interval time for the earthquakes.For the short variation of earth rotation this phenomenon is clear;either the earthquakes occur in most fast or in lowst of earth rotation.The above-mentioned results indicate that the earthquakes occurrence is affected by astronomical factors.The astronomical factors are one of motive force causing earthquake from external world.The astronomical factors with long period may act as modulation for the earthquake-pregnant process.And the astronomical factors with short period will causing huge fluctuations of the system and earthquake occur when it act on seismic structure of away from balance state.
This paper analyzes the astronomical background of the global huge earthquakes with M≥8.5.The result shows that most of the earthquakes has occurred in the seismic belts(regions) where is being corresponding seismic active period with the lunar path,solar active falling period and accelerating period of earth rotation.This is as for the variation of long period of astronomical factors.For the variation of short period of astronomical factors,whether for local time or local sidereal time and lunar phase there is the phenomenon of occurrence of concentrating a interval time for the earthquakes.For the short variation of earth rotation this phenomenon is clear;either the earthquakes occur in most fast or in lowst of earth rotation.The above-mentioned results indicate that the earthquakes occurrence is affected by astronomical factors.The astronomical factors are one of motive force causing earthquake from external world.The astronomical factors with long period may act as modulation for the earthquake-pregnant process.And the astronomical factors with short period will causing huge fluctuations of the system and earthquake occur when it act on seismic structure of away from balance state.
引文
[1]Sadeh D S,Meidav M.Search for sidereal periodicity in earthquake occurrence[J].JGR.,1973,78:7709-7716.
[2]杜品仁.18.6年地震轮回及其成因初探[J].地球物理报,1994,37(3):361-369.
[3]胡辉,李晓明.Research on Correlation of Positions of Celestial Objects withEarthquakes[J].Natural Hazards,2001,23:339-348.
[4]杜品仁,徐道一.天文地震学引论[M].北京:地震出版社,1989.
[5]罗葆荣.高能粒子流对地震活动的可能调制[J].云南天文台台刊,1995,(3):1-11.
[6]赵洪声,张世杰,胡辉等.天-气-地耦合与地震预报[M].昆明:云南大学出版社,1994.63-68.
[7]IERS(International Earth Rotation Service).IERS Annual Report for 200[C].Frankfurt am Main 2001.
[8]IERS.Bulletin B 155─188(2001─2003),Observatoire de Paris.
[9]许绍燮.地震预报发展战略在于创新[J].国际地震动态,2005,(5):30-33.
[10]Shlien S.Earthquake-tide correlation Geophys.J.R.Astr.Soc.,1972,28(1):27-34.
[11]韩延本,胡辉,王锐等.Test of effect of tide generating forces on global grealearthquakes[A].Proceedings of Third International Symposium on Geophysics[C].Tanta,2004.432-435.
[12]方俊.固体潮[M].北京:科学出版社,1984.1.
[13]郭增建,秦保燕,郭安宁.地气偶合与天灾预测[M].北京:地震出版社,1996,165-188.
[14]Nicolis G,I Prigogine.Self-organization in Nonequilibrium Systems:FromDissipative Structure to Order though Fluctuations[M].Wiley-Interscience,1977.
[15]陈立德.关于地震预报科学思想,方法论及难点的思考[J].地震研究,1992,15(2):185-192.
[2]杜品仁.18.6年地震轮回及其成因初探[J].地球物理报,1994,37(3):361-369.
[3]胡辉,李晓明.Research on Correlation of Positions of Celestial Objects withEarthquakes[J].Natural Hazards,2001,23:339-348.
[4]杜品仁,徐道一.天文地震学引论[M].北京:地震出版社,1989.
[5]罗葆荣.高能粒子流对地震活动的可能调制[J].云南天文台台刊,1995,(3):1-11.
[6]赵洪声,张世杰,胡辉等.天-气-地耦合与地震预报[M].昆明:云南大学出版社,1994.63-68.
[7]IERS(International Earth Rotation Service).IERS Annual Report for 200[C].Frankfurt am Main 2001.
[8]IERS.Bulletin B 155─188(2001─2003),Observatoire de Paris.
[9]许绍燮.地震预报发展战略在于创新[J].国际地震动态,2005,(5):30-33.
[10]Shlien S.Earthquake-tide correlation Geophys.J.R.Astr.Soc.,1972,28(1):27-34.
[11]韩延本,胡辉,王锐等.Test of effect of tide generating forces on global grealearthquakes[A].Proceedings of Third International Symposium on Geophysics[C].Tanta,2004.432-435.
[12]方俊.固体潮[M].北京:科学出版社,1984.1.
[13]郭增建,秦保燕,郭安宁.地气偶合与天灾预测[M].北京:地震出版社,1996,165-188.
[14]Nicolis G,I Prigogine.Self-organization in Nonequilibrium Systems:FromDissipative Structure to Order though Fluctuations[M].Wiley-Interscience,1977.
[15]陈立德.关于地震预报科学思想,方法论及难点的思考[J].地震研究,1992,15(2):185-192.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心