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天然地震预报的新突破导至膨胀模型,在该模型中许多天然地震出现的空间地带, 是可以在发生地震之前用地球物理方法观测到的。这些膨胀是由主要机械损坏的前兆、岩石中的微量破坏现象所引起的。在该带内孔隙度的增加引起孔隙结构的欠饱和,直至流体能从外面扩散到膨胀带为止。在预震膨胀带中,这种暂时的液体欠饱和现象产生非常类似于存在地下气藏的地球物理条件。因此,相同的地球物理技术应该能应用于观测这两种异常类型的地下范围。
New breakthroughs in natural earthquake prediction lead to dilatational models where many of the natural earthquakes appear to have been geophysically observed before an earthquake occurs. These bulges are caused by the precursors of the major mechanical damage, the micro-destruction in the rock. The increase in porosity within the belt causes undersaturation of the pore structure until the fluid can diffuse from the outside to the expansion belt. In a pre-shock expansion zone, this temporary liquid under-saturation produces geophysical conditions much like the subsurface gas reservoirs present. Therefore, the same geophysical techniques should be applied to the observation of the subsurface ranges of these two anomalies.