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本文根据近些年来对四川攀西地区的地震危险性研究,总结了攀西地区潜在震源区的地震地质判据,着重强调了活断层的断错地貌标志和断层活动的性质、方式、位移量大小、滑动速率以及历史地震活动强度对判定潜在震源区的重要作用。并根据活断层的地表破裂长度、地震位移量大小、近代地壳形变区的范围及形变量出现异常时间的长短、断层滑动速率与地震震级的关系讨论了确定潜在震源区最大震级的一些方法。
Based on the study of the seismic risk in the Panxi area in recent years, this paper summarizes the seismic geological criteria of the potential source regions in Panxi, emphasizes the fault landforms and the nature, mode and amount of displacement of the active faults Size, slip rate, and intensity of historical seismic activity are important determinants of potential source regions. Some methods for determining the maximum magnitude of potential source regions are discussed according to the relationship between the fault rupture length, the amount of earthquake displacement, the range and deformation of the modern crustal deformation zone, the length of anomaly time, the relationship between slip rate and earthquake magnitude.