Early warning of earthquakes has actually become the main goal of seismology. And though seismic prediction started as a purely seismological discipline, it now involves hydrology, hydro -geochemistry, measurement of telluric and magnetic fields etc. The parameters under observations for the purpose of diagnosing seismic regimes include hydro -chemical parameters, atmospheric electrical disturbances, electromagnetic emissions, anomalous disturbances in the ionosphere and the magnetosphere recorded by satellite.