Abstract: Repeating earthquakes have been broadly applied in the study of seismology. Hundreds of digital seismic stations have been built from the ninth and tenth five years period in China,which offer a very good condition for the study of repeating earthquakes. A software for identifying and analyzing repeating earthquakes has been developed in order to bring into play the studying role of repeating earthquakes based on the defining and identifying method about repeating earthquakes,and an actual application example of repeating earthquakes is given in the earthquake forecasting. The test shows that the software about repeating earthquakes can relatively achieve high-precision analysis of crustal medium using digital seismic waveform data.

Key words: Repeating earthquake, Recognising technology, Time delay