2011年云南盈江Ms5.8级地震序列的潮汐触发研究
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摘要
采用Schuster谱和KORRECT统计方法,以2011年3月10日云南盈江Ms5.8级地震及其地震序列为研究对象,通过Schuster谱分析确定地震序列中存在的主要周期成分,并依据主要周期确定脉冲宽度,并利用KORRECT方法进一步验证地震序列主要周期的显著度。结果显示,2011年盈江Ms5.8级地震序列有明显的日潮和半日潮2种周期成分,并且这2种潮汐周期都检验出了类似正弦曲线的地震活动分布。说明2011年云南盈江地震序列主要受到日潮和半日潮的潮汐触发作用。
In this paper,two statistical methods,Schuster spectrum and KORRECT,are used to analyze the Yingjiang Ms5.8 earthquake and its seismic sequence on March 10,2011.First,the main periodic components in the seismic sequence are determined by Schuster spectrum analysis,and the pulse width is determined according to the main period.Then,the KORRECT method is used to further verify the significance of the main period of the seismic sequence.The results show that Yingjiang Ms5.8 earthquake sequence in 2011 has obvious diurnal and semi-diurnal tidal components,and the sinusoidal seismic activity distribution is detected in both tidal cycles.It shows that Yingjiang earthquake sequence in Yunnan in 2011 is mainly triggered by the tides of the diurnal and semidiurnal tides.
In this paper,two statistical methods,Schuster spectrum and KORRECT,are used to analyze the Yingjiang Ms5.8 earthquake and its seismic sequence on March 10,2011.First,the main periodic components in the seismic sequence are determined by Schuster spectrum analysis,and the pulse width is determined according to the main period.Then,the KORRECT method is used to further verify the significance of the main period of the seismic sequence.The results show that Yingjiang Ms5.8 earthquake sequence in 2011 has obvious diurnal and semi-diurnal tidal components,and the sinusoidal seismic activity distribution is detected in both tidal cycles.It shows that Yingjiang earthquake sequence in Yunnan in 2011 is mainly triggered by the tides of the diurnal and semidiurnal tides.
引文
[1]Tanaka S.,Ohtake M.,Sato H.Evidence For Tidal Triggering Of Earthquakes As Revealed From Statistical Analysis Of Global Data[J].Journal of Geophysical Research Solid Earth,2002,107(B10):ESE-1-ESE 1-11.
[2]Tanaka S.Tidal Triggering Of Earthquakes Prior To The 2011 Tohoku-Oki Earthquake(Mw 9.1)[J].Geophysical Research Letters,2012,39(7):105-114.
[3]张辉,张浪平,徐辉,等.中国大陆Ms≥7.0地震与潮汐库仑破裂应力关系研究[J].中国地震,2013,29(1):48-56.
[4]Xie C.,Lei X.,Zhao X.,et al.Tidal Triggering Of Earthquakes In The Ning’er Area Of Yunnan Province,China[J].Journal of Asian Earth Sciences,2017,138:477-483.
[5]Heaton T.H.Tidal Triggering Of Earthquakes[J].Geophysical Journal of the Royal Astronomical Society,1975,43(2):307-326.
[6]Emter D.Tidal Triggering Of Earthquakes And Volcanic Events[M].Tidal Phenomena.Springer Berlin Heidelberg,1997:293-309.
[7]Berg E.Triggering Of The Alaskan Earthquake Of March 28,1964 And Major Aftershocks By Low Ocean Tide Loads[J].Nature,1966,210(5 039):893-896.
[8]Mohler,A.S.Earthquake/Earth Tide Correlation And Other Features Of The Susanville,California,Earthquake Sequence Of June-July 1976[J].Bull.Seism.Soc.Am.,1980,70:1 583-1 593.
[9]Ader T.J.,Avouac J.P.Detecting Periodicities And Declustering In Earthquake Catalogs Using The Schuster Spectrum,Application To Himalayan Seismicity[J].Earth&Planetary Science Letters,2013,377(5):97-105.
[10]Kamal,Mansinha L.The Triggering Of Aftershocks By The Free Oscillations Of The Earth[J].Bull.Seism.Soc.Am.,1996,86(2):299-305.
[11]Datta A.,Kamal.Triggering Of Aftershocks Of The Japan 2011 Earthquake By Earth Tides[J].Current Science,2011,102(5):792-796.
[12]房立华,吴建平,张天中,等.2011年云南盈江Ms5.8地震及其余震序列重定位[J].地震学报,2011,33(2):262-267.
[13]杨芬,王军.2014年云南盈江5.6和6.1级地震前中短临异常特征[J].高原地震,2015,27(3):7-15.
[14]Scargle J.D.Studies In Astronomical Time Series A-nalysis.II-Statistical Aspects Of Spectral Analysis Of Unevenly Spaced Data[J].Astrophysical Journal,2003,263(2):835-853.
[15]Hemandez.Time Series,Periodograms,And Significance[J].Journal of Geophysical Research Space Physics,1999,104(A5):10 355-10 368.
[2]Tanaka S.Tidal Triggering Of Earthquakes Prior To The 2011 Tohoku-Oki Earthquake(Mw 9.1)[J].Geophysical Research Letters,2012,39(7):105-114.
[3]张辉,张浪平,徐辉,等.中国大陆Ms≥7.0地震与潮汐库仑破裂应力关系研究[J].中国地震,2013,29(1):48-56.
[4]Xie C.,Lei X.,Zhao X.,et al.Tidal Triggering Of Earthquakes In The Ning’er Area Of Yunnan Province,China[J].Journal of Asian Earth Sciences,2017,138:477-483.
[5]Heaton T.H.Tidal Triggering Of Earthquakes[J].Geophysical Journal of the Royal Astronomical Society,1975,43(2):307-326.
[6]Emter D.Tidal Triggering Of Earthquakes And Volcanic Events[M].Tidal Phenomena.Springer Berlin Heidelberg,1997:293-309.
[7]Berg E.Triggering Of The Alaskan Earthquake Of March 28,1964 And Major Aftershocks By Low Ocean Tide Loads[J].Nature,1966,210(5 039):893-896.
[8]Mohler,A.S.Earthquake/Earth Tide Correlation And Other Features Of The Susanville,California,Earthquake Sequence Of June-July 1976[J].Bull.Seism.Soc.Am.,1980,70:1 583-1 593.
[9]Ader T.J.,Avouac J.P.Detecting Periodicities And Declustering In Earthquake Catalogs Using The Schuster Spectrum,Application To Himalayan Seismicity[J].Earth&Planetary Science Letters,2013,377(5):97-105.
[10]Kamal,Mansinha L.The Triggering Of Aftershocks By The Free Oscillations Of The Earth[J].Bull.Seism.Soc.Am.,1996,86(2):299-305.
[11]Datta A.,Kamal.Triggering Of Aftershocks Of The Japan 2011 Earthquake By Earth Tides[J].Current Science,2011,102(5):792-796.
[12]房立华,吴建平,张天中,等.2011年云南盈江Ms5.8地震及其余震序列重定位[J].地震学报,2011,33(2):262-267.
[13]杨芬,王军.2014年云南盈江5.6和6.1级地震前中短临异常特征[J].高原地震,2015,27(3):7-15.
[14]Scargle J.D.Studies In Astronomical Time Series A-nalysis.II-Statistical Aspects Of Spectral Analysis Of Unevenly Spaced Data[J].Astrophysical Journal,2003,263(2):835-853.
[15]Hemandez.Time Series,Periodograms,And Significance[J].Journal of Geophysical Research Space Physics,1999,104(A5):10 355-10 368.