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本文分析了东南沿海地区70个震源机制结果,得到本区现代构造应力场的主压应力轴具有扇形分布的特征.东、西两部的震源错动方式截然相反.根据亚洲东南部地块的震源应力场资料,认为本区应力场及其特征可以从太平洋板块和印度洋板块相对于欧亚板块的运动得到合理的成因解释.
This paper analyzes the results of 70 focal mechanisms in the southeastern coastal region and finds that the main compressive stress axis of the modern tectonic stress field in this area has a fan-shaped distribution with opposite polarities.According to the southeastern part of Asia It is considered that the stress field and its characteristics in this area can be reasonably explained by the genesis of the movement of the Pacific and Indian plates relative to the Eurasian plate.