Abstract: Following the discussion of regional-geological characteristics of the northern part of Ningsia,it is indicated that the earthquake-generating structures for the Pingluo quake (M=8.0) of 1739 is held to be NNE-striking Huanghe River fault lying at the Yinchuang-Pingluo area.This paper is an analysis of the characterized preparation the shock in terms of a generalized focal model and an elucidation of the spatial position and characteristics for the structural elements.

摘要： 本文在讨论了宁夏北部区域地质基本特征的基础上,指出1739年平罗8.0级地震的发震构造是银川—平罗间呈北北东方向展布的断裂。利用“组合模式”就该地震的孕育特征进行了初步分析,阐述了积累单元和调整单元的空间位置及特征。