DOI: 10.36347/sjet

Pages: 33-36

As we known, earthquake (EQs) prediction had been mentioned as an important issue to many countries. In this paper, we proposed an approach to find out the events of large earthquakes from the time series data of GPS total electron content (GPS TEC) by using clustering analysis. To search for possible precursors before earthquake occurring in a large area, the GPS TEC of the global ionosphere map (GIM), which is routinely published in a 2hr time interval for monitoring global ionospheric weather, reported at the Center for Orbit Determination in Europe (CODE) is used in this study. And, an illustrative case at Taiwan is also used to denote the feasiblilty of the proposed approach.