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一、台址地质构造状况 1989年10月18日大同-阳高6.1级地震发生在阴山纬向带的南沿,与北北西向大同-南京断裂带的交汇部位。昌平地震台位于阴山巨型纬向构造带的南沿、北东向南口山前活动断裂和北西向南口-孙河活动性断裂交叉部位东侧7.5km处,和震中区同处于一个构造体系中,距大同-阳高6.1级地震震中区210km。二、昌平台仪器观测概况昌平台现有TJ-1A型体积式应变仪、RDJ-1A型多道压容应变仪、YRY-2型压容应变仪、AHY-832型压阻应变仪、ZX型振弦应变仪和Φ110型压磁应力仪。其中除压磁应力仪外,均属第二代高精度钻孔应变仪,能清晰地记录应变固体潮。这些仪器都能自
I. Geological Structure of the Site On October 18, 1989, the Datong-Yanggao M6.1 earthquake occurred at the southern margin of the Yinshan zonal belt and at the junction of Datong-Nanjing Fault belt in north-northwest direction. Changping Seismostation is located at the south margin of the Yinshan giant zonal structure belt. The piedmont active fault in the north east-south direction and the 7.5 km east of the intersection of the north west-south active fault and the Sunhe earthquake zone are located in the same tectonic system as the epicentral region, From the Datong-Yanggao M6.1 epicentral area 210km. Second, the Changping Taiwan Instrument Overview Chang platform existing volume TJ-1A-type strain gauge, RDJ-1A multi-channel volumetric strain gauge, YRY-2-type pressure-tolerant strain gauge, AHY-832 piezoresistive strain gauge, ZX Vibrating wire strain gauge and Φ110 pressure magnetic stress meter. In addition to the pressure magnetic stress gauge, are the second generation of high-precision borehole strain gauge, can clearly record the strain of solid tide. These instruments can be self