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Lu YUANZHONG, SHEN JIANWEN, SONG JUNGAOcom sh advance. 1982: SEISMIC GAPS AND IMMINENT EARTHQUAKES. Acta Seismologica Sinica, 4(4): 327-336.
Citation: Lu YUANZHONG, SHEN JIANWEN, SONG JUNGAOcom sh advance. 1982: SEISMIC GAPS AND IMMINENT EARTHQUAKES. Acta Seismologica Sinica, 4(4): 327-336.
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SEISMIC GAPS AND IMMINENT EARTHQUAKES

  • Seismological Bureau of Anhui Province

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  • Published Date: August 31, 2011
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    • Abstract
  • By analysing a number of cases of moderate and strong earthquakes, it is pointed out in this paper that seismic gaps can be classified into two categories. Besides, background gaps formed by large earthquakes in a large area with a long time duration, there can also be preparatory gaps formed by smaller earthquakes in a smaller area and with a shorter time duration. A comparison has been made between these two kinds of seismic gaps. It has been also found that at the later period of preparatory gaps, one or a group of rather outstanding earthquakes occur on their edges, called imminent earthquakes. Some characteristic features of such earthquakes and their relation to the forthcoming main earthqaukes for their possibility in predicting earthquakes are preliminarily studies. Finally, we also made a preliminary analysis of the physical process causing the preparatory gaps and imminent earthquakes with the point of view of fracture mechanics.
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    • References (1)
  • [1] S. A. Fedotov, Regularities of the distribution of strong earthquake in Kamchatka, the Kutile Islands,

    [2] and northeastern Japan, Trrsdy lest. Phys. Earth. Acad. Sci. USSR, 36, 66——93, 1965.

    [3] K. Mogi, Some features of recent seismic activity in and near Japan (2), Activity before and after great earthquakes. Brsll. Earthq. Rer. Inst., Univ. Tokyo 47, 395——417,1969.

    [4] 吴开统等,海城地震序列的特征,地球物理学报,192,1976,

    [5] 魏光兴等,华北地区地震前地震的围空区特征,地球物理学报,21,3,1978,

    [6] K. Mogi, Two kinds of seismic gaps, Pageoph, 117, 6. 1172——1186, 1979.

    [7] 冯德益等,我国西部地区一些强震及中强震前后波速异常的初步研究(一)—波速比异常I,19,3,1976,

    [8] F. h,vison, Precursory seismic sequence in New Zealand, New Zealand Jotsrnal of Geology and Geophysics, 20, 1, 129——141, 1977.

    [9] 冯德益等,我国西部地区一些强震及中强震前后波速异常的初步研究(二)—波速异常区及其特征,地球物理学报,20,2,1977,

    [10] 陈立德等,一九七六年龙陵地震,地震出版社,1979,

    [11] G. C. Sih., Handbook of Stress——Intensity Factors, Institute of fracture and solid mechanics Lehigh Universify Bethlehem, Pennsylvania, 1973.

    [12] 北京钢铁研究院金属物理室,工程断裂力学(上册) 68,国防工业出版社,1977,

    [1] S. A. Fedotov, Regularities of the distribution of strong earthquake in Kamchatka, the Kutile Islands,

    [2] and northeastern Japan, Trrsdy lest. Phys. Earth. Acad. Sci. USSR, 36, 66——93, 1965.

    [3] K. Mogi, Some features of recent seismic activity in and near Japan (2), Activity before and after great earthquakes. Brsll. Earthq. Rer. Inst., Univ. Tokyo 47, 395——417,1969.

    [4] 吴开统等,海城地震序列的特征,地球物理学报,192,1976,

    [5] 魏光兴等,华北地区地震前地震的围空区特征,地球物理学报,21,3,1978,

    [6] K. Mogi, Two kinds of seismic gaps, Pageoph, 117, 6. 1172——1186, 1979.

    [7] 冯德益等,我国西部地区一些强震及中强震前后波速异常的初步研究(一)—波速比异常I,19,3,1976,

    [8] F. h,vison, Precursory seismic sequence in New Zealand, New Zealand Jotsrnal of Geology and Geophysics, 20, 1, 129——141, 1977.

    [9] 冯德益等,我国西部地区一些强震及中强震前后波速异常的初步研究(二)—波速异常区及其特征,地球物理学报,20,2,1977,

    [10] 陈立德等,一九七六年龙陵地震,地震出版社,1979,

    [11] G. C. Sih., Handbook of Stress——Intensity Factors, Institute of fracture and solid mechanics Lehigh Universify Bethlehem, Pennsylvania, 1973.

    [12] 北京钢铁研究院金属物理室,工程断裂力学(上册) 68,国防工业出版社,1977,
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