Feasibility of earthquake prediction in Koyna region (India )

Abstract

Seismcity alongwith various parameters, viz, tilt strain and geomagnetic field intensity has been observed over a long period in the active Koyna region. Geohydrological parameters like ground water levels, hot spring temperatures and discharge rates have also been observed. Study of these parameters alongwith the earthquakes has indicated feasibility of utilizing b-values, seismic wave velocity anomalies, ground tilts, in-siturock strains and geomagnetic field measurements for prediction of earthquakes. The anomaly (premonitory) periods observed for these parameters are in good agreement with those reported for other earthquakes. Extensive data over long period confirm the results obtained earlier by the authors regarding application of b-values, ground tilt and rock strain measurements for earthquake predictions.