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宁夏地处我国南北地震带的北段,是我国多地震的省(区)之一。银川平原和西(吉)、海(原)、固(原)都是我国有名的地震活动区,历史上分别发生过1739年银川——平罗8级地震和1920年海原8.5级地震。1965年以后,宁夏开始布设地震台网,从1970年起台网具有控制M_L≥2.5级以上地震的能力,南部的西、海、固地区,因有陕西、甘肃的地震台网可以配合使用,控制能力就更高些。本文就是利用历史上破坏性地震和1970年以来的弱震活动
Ningxia is located in the northern section of China’s north-south seismic zone and is one of the provinces (districts) with many earthquakes in our country. Yinchuan plain and West (Ji), sea (former), solid (original) are China’s famous seismic activity area, history, respectively, occurred in 1739, Yinchuan - Pingluo MS8.0 earthquake and M8.1 Haiyuan 8.5 earthquake. Since 1965, Ningxia began to deploy seismic networks. Since 1970, Taiwan’s network has the ability to control M_L≥2.5 earthquakes. The seismological networks in Shaanxi and Gansu can be used in conjunction with the seismic stations in the west, The control ability is higher. This article uses historical devastating earthquakes and weak earthquakes since 1970