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我国大陆及其邻区地震活动带的空间展布似乎符合对数螺线的空间图象,而且呈现有规则的空间“网络”结构,可根据弹性力学理论,运用印度板块与欧亚板块相碰撞,在喜马拉雅弧产生强大的板块边界作用力在中国大陆及其邻区的广泛分布来解释。这些对数螺线正是在这种统一应力作用下,形成的构造滑移线,即最大剪应力和剪应变集中区带。可以认为,主要地震活动区、带和现代构造运动的发生、发展都与这些构造滑移线及这些构造滑移线所形成的大大小小的菱形断块相互作用有关。强烈地震不但往往发生在构造滑移线上(或附近),尤其是它们的交汇部位,而且顺滑移线迁移和在不同滑移线之间跳迁和呼应。我国大陆及其邻区地震活动的主要特征以及前兆敏感点似乎都可由上述观点得到解释,并由此观点出发可对潜在震源区、带提出一种新的预测途径和方法。
The spatial distribution of seismic zones in China’s mainland and its adjacent areas appears to be in line with the spatial image of the logarithmic spiral and shows a regular spatial “network” structure. According to the theory of elastic mechanics, the collision between the Indian plate and the Eurasian plate , Explains the wide distribution of forces in the Himalayas that have a strong plate boundary force in mainland China and its neighbors. These logarithmic spirals are exactly the tectonic slip lines formed under this uniform stress, ie, the maximum shear stress and shear strain concentration zone. It can be considered that the occurrence and development of major seismic activity zones, belts and modern tectonic movements are all related to the interaction between these structural slip lines and the large and small diamond fault blocks formed by these structural slip lines. Strong earthquakes not only occur on (or near) the formation slip lines, especially their intersections, but also migrate smoothly and jump and echo between different slip lines. The main features of earthquake activity in China and its adjacent areas as well as precursor sensitive points seem to be explained by the above viewpoints. From this point of view, a new prediction approach and method for potential seismic zones and zones can be proposed.