Estimation of Locating Ability of the Shanghai Digital Seismological Network

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.