Seismological observations started since the end of last century over different parts of the world are being continuously improved in respect of accuracy of the epicentral parameters and interest to cover a larger frequency band of seismic waves. The improvement has been so rapid that by the time indigenous development of instruments takes place, the model becomes obsolete because of the additional requirements posed by the seismologists. A review of national and international status during the last 25 years shows that wide band seismographs linked with satellite telemetry which have been deployed by USGS, IRIS and a few other regional networks would continue to provide the desired data for years to come. The gaps in this direction highlight the need for endogenous capacity building.