geomagnetic anomaly associated with 2018 greece earthquake

The existence of anomaly in geomagnetic and geoelectric data before earthquakes has been reported in many studies in recent years, and has been considered as an earthquake precursor. in the following work, a new method (pourbeyranvand& bali, 2008) is presented in order to process these data. this method can present these anomalies with higher accuracy comparing to previous works. we applied our method on geomagnetic data which has been recorded in a geophysical station in greece. data from every 24 hours during one year is plotted repeatedly in order to obtain the characteristiccurve. we analyzed the greece earthquake mw =6.8 25/10/2018.