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1981: CERTAIN CHARACTERISTICS OF THE SEISMIC ACTIVITY PRECEDING THE HAICHENG EARTHQUAKE OF MAY 18, 1978 OF MAGNITUDE Ms=6.0. Acta Seismologica Sinica, 3(2): 118-125.
Citation: 1981: CERTAIN CHARACTERISTICS OF THE SEISMIC ACTIVITY PRECEDING THE HAICHENG EARTHQUAKE OF MAY 18, 1978 OF MAGNITUDE Ms=6.0. Acta Seismologica Sinica, 3(2): 118-125.
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CERTAIN CHARACTERISTICS OF THE SEISMIC ACTIVITY PRECEDING THE HAICHENG EARTHQUAKE OF MAY 18, 1978 OF MAGNITUDE Ms=6.0

  • Analysis and Prediction Center, State Seismological Bureau

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  • Published Date: August 31, 2011
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    • Abstract
  • The Haicheng Earthquake of May 18, 1978 occurred in a Gap of the aftershock area of the Strong Haicheng Earthquake of magnitude 7.3 of February 4, 1975.The monthly rate of attenuation of the aftershocks (Ms2.0) was abnormally Iow(p = 0.73). However, after the earthquake of May 18, 1978, the value of p obviously increased. That is to say, it occurred at the inflection point of the attenuation curve of the monthly rate of aftershocks.Contrarily to the mainshock of magnitude 7.3, before this earthquake, not much fore-shock activity appeared. It constitutes the strongest aftershock of the mainshock. The author believes that it is an aftershock caused by the concentrated accumulation of tectonic regional stress within the unbroken gap area.
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    • References (1)
  • [1] 地球物理研究所编,1977年,中国地震目录,第一、二册.

    [2] 顾浩鼎、陈运泰等,1975年2月4日辽宁省海城地震的震源机制,地球物理学报,19, 4 ,276, 1976

    [3] 字津德治,地震癸生の统计モテル,数理科学,158, 33, 1978

    [4] 朱传镇等,海城地震前后微震震源参数与品质因子,地球物理学报,20,222——1977

    [5] К.И.Куsнецова и Т.Д,.Афтершоки послействия и АФтершоки развития очаговой зоны дагеста——нского землетрясения исследования по фиике землетрясений Москва“натка”,94,1976

    [6] 陈颗,声发射技术在岩石力学研究中的应用,地球物理学报,20, 4, 312, 1977

    [7] 中国科学院地球物理研究所第三研究室实验室,单轴压力下岩石破裂的初步研究,地球物理学报,19, 4 , 306,1976

    [8] С.Д.Виноградов и Т. Д., Распрение во времени упругин импульсов,возникающих при разу——шении образцов изз.АН.СССР,Физика земли,4,3,1975

    [1] 地球物理研究所编,1977年,中国地震目录,第一、二册.

    [2] 顾浩鼎、陈运泰等,1975年2月4日辽宁省海城地震的震源机制,地球物理学报,19, 4 ,276, 1976

    [3] 字津德治,地震癸生の统计モテル,数理科学,158, 33, 1978

    [4] 朱传镇等,海城地震前后微震震源参数与品质因子,地球物理学报,20,222——1977

    [5] К.И.Куsнецова и Т.Д,.Афтершоки послействия и АФтершоки развития очаговой зоны дагеста——нского землетрясения исследования по фиике землетрясений Москва“натка”,94,1976

    [6] 陈颗,声发射技术在岩石力学研究中的应用,地球物理学报,20, 4, 312, 1977

    [7] 中国科学院地球物理研究所第三研究室实验室,单轴压力下岩石破裂的初步研究,地球物理学报,19, 4 , 306,1976

    [8] С.Д.Виноградов и Т. Д., Распрение во времени упругин импульсов,возникающих при разу——шении образцов изз.АН.СССР,Физика земли,4,3,1975
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