华南地区弥散地震活动的评价方法与结果

根据华南地区现今地球动力学环境、新构造特征、发震构造模型、第四纪构造活动、地球物理场等方面的差异,通过具体的实例,有针对性地论述了弥散地震区划分的方法,系统地阐述了华南地区弥散地震的评价依据.对于弥散地震区内与已知发震构造无关的最大历史地震,给出了两种情况下确定弥散地震的方法,探讨了总体地震和构造活动水平与弥散地震的关系.华南地区弥散地震活动的评价结果与地球动力学环境特征密切相关,地震构造背景的一致性是进行弥散地震类比的基础.本文除了论述弥散地震活动评价方法之外,还初步给出了华南地震区弥散地震区划分方案和弥散地震评价结果.

Diffuse Seismicity in the South China-Evaluation Method and Application

In this paper, we discuss the differences of dynamic environment, neo-tectonics, seismogenic models, Quaternary tectonic movement and geophysical field of the South China, and their roles in dividing diffuse seismicity provinces. Considering the actual seismo-tectonic features, the conditions for evaluating the magnitudes of diffuse earthquakes are introduced systematically. As to the maximum historical earthquake with no relation to a known seismogenic tectonics in a diffuse seismicity province, two approa...