根据京津冀地区地震台网的分布和平均地脉动噪声估算了该地区地震台网的监测范围，又根据中国地震台网中心产出的地震目录描绘了京津冀地区实际地震监测范围，发现北京市与河北省在2条地震带上应补充足够的地震台站，以降低对地震带附近地震监测的下限，从而有利于京津冀地区的地震监测与预测。

According to the distribution of seismic stations and the ambient noise in the Capital area，we estimated the monitoring ability of the Beijing，Tianjin and Hebei Digital Seismic Networks，and then according to the catalogue produced by the China Earthquake Networks Center，we gave the picture of the factual locations of the earthquakes. The result shows that we should build more stations in the two faults in Capital area to enhance the monitoring ability to benefit the monitoring ability and earthquake forecasting in the Capital area.

中国地震局地球物理研究所，中央级公益性科研院所基本科研业务专项(PQJB15C01)资助