宁夏地区地壳速度成像分析

Analysis of Crustal Velocity Imaging in Ningxia

摘要: 强震与大地震往往发生在活动断裂带上的相对高应力积累区或闭锁段落上，本文以活动构造学方法为主鉴别断裂活动习性与破裂分段，采用改进后的多震相地震走时成像方法，进行宁夏及邻区三维速度结构成像，确定某些活动断裂带未来可能发生强震或大地震的段落，为地震预测预报拓展思路。

Abstract: Strong earthquakes and large earthquakes often occur in the relatively high stress accumulation area or in the blocking segment of the active fault zone. In this paper, the method of active tectonics is used to identify the active behavior of faults and the segmentation of faults. By using the improved multi-phase seismic travel-time imaging method, the three-dimensional velocity structure imaging of Ningxia and its adjacent areas is carried out, and the sections of some active fault zones where strong earthquakes or large earthquakes may occur in the future are determined, expanding the train of thought for earthquake prediction and prediction.