上海数字地震台网监测能力评估*
尹继尧1,2,朱元清2,1

(1.同济大学 海洋与地球科学学院,上海 200092; 2.上海市地震局,上海 200062)

监测能力; 数字地震台网; 地震台阵; 联合定位; 上海

Estimation of Locating Ability of the Shanghai Digital Seismological Network
YIN Ji-yao1,2,ZHU Yuan-qing2,1

(1. School of Ocean and Earth Science,Tongji University,Shanghai 200092,China)(2. Earthquake Administration of Shanghai Municipality,Shanghai 200062,China)

monitoring ability; seismic network; seismic array; coordinate location; Shanghai

备注

利用近震震级公式,分别对上海数字地震台网监测能力、上海佘山地震台阵作为一个加强台站与上海数字地震台网联合定位的监测能力进行估算并比较两者的评估结果,同时利用上海台网的地震记录对评估结果进行检验。结果 显示,把台阵作为加强台站加入台网进行联合定位时,台网的监测能力明显提高,本次评估结果基本符合实际上海数字地震台网真实地震监测能力。

Using the formula to calculate the local earthquake's magnitude,we estimate the locating ability of the Shanghai Digital Seismological Network and the locating ability of Shanghai Digital Seismological Network plus Shanghai Seismic Array respectively. We find that the locating ability of Shanghai Seismological Network will be noticebaly improved when it takes in Shanghai Seismic Array as a strengthening station. Comparing the estimated result with the earthquake catalogue provided by the Shanghai Seismological Network,we find that the results generally accord with the real monitoring ability of Shanghai Digital Seismological Network.