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地震活动的规模常具有大尺度的特点,结合全球地震分布具有相当的似对称性,我们认为,地震的成因必然蕴含着地球的整体运动.地震活动具有块体性活动的特点.块体的边界线常与经纬线相交成45°.强震发生前也有这种情况.文中给出了与经纬线相交成45°的一个条块,近年华北的强震基本上都落在这个条块的两条边线上,且这些强震的分布具有较明显的等间隔分布特点,类似于地层中的褶皱所显示的一定的波长.我们分析了有历史记载以来我国全部八级地震,发现每次八级地震前后,都有另一次八级或七级半地震在它的一定距离上发生.这个间距有两个优势分布,一个短距的为480—550公里,另一个长距的为1100公里左右(后者约为前者的一倍).引用了柱壳轴向受力屈曲作为初步探讨.从分析可知,柱壳屈曲的半波长(1/2λ≈1.72(?)Rh)主要决定于圆柱半径与柱壳厚度:以 R=6000公里、h=15公里估算,得半波长为530公里,与我国强震分布间距较为符合.故我们的初步认识是地震的分布可能受着地壳屈曲的控制.
The magnitude of the seismic activity is often characterized by large-scale characteristics. Considering that the distribution of earthquakes in the world is quite symmetrical, we believe that the genesis of earthquakes necessarily implies the earth’s overall movement. The seismic activity has the characteristics of block activity. The line often intersects with the latitude and longitude lines at 45 °. This is also the case before the strong earthquakes. The article gives a bar intersecting with the latitude and longitude lines at 45 °. In recent years, strong earthquakes in North China have basically fallen on two And the distribution of these strong earthquakes has the obvious equidistant distribution similar to the certain wavelength shown by the folds in the strata.We analyzed all the eight earthquakes in our country since the historical records and found that every eight Before and after the earthquake, there were another eight or seven and a half earthquakes that took place at a distance that had two dominant distributions: 480-550 km for one short-range and about 1100 km for the other long-range The latter is about twice as large as the former.) The axial buckling of cylindrical shell is taken as a preliminary study. From the analysis, it can be seen that the half wavelength of the shell buckling (1 / 2λ≈1.72 (?) Rh) Cylinder shell thickness: R = 6000 公公, H = 15 Gongli estimate, was half a wavelength of 530 km, with the distance of more in line with the distribution of strong earthquakes. Therefore, our initial understanding of the distribution is being affected by the earthquake may control the crust buckling.