Abstract: The processing system of microseism parameters based on server and database at digital seismic network has been developed. The system daily gains microseism waveform data from the servers at the seismic network center by means of FTP protocol, then automatically calculates microseism parameters and sends the microseism parameters into the database. The inquiry and graphic display system has been developed based on the server about the microseism parameters. Anyone can inquire the microseism parameters and draw the change figures of the microseism parameters only by means of the IE browser. The authors discover that the microseism parameter have evidently anomalous variation before the marked earthquakes and during the active seismicity in Hainan region and its neighboring areas through the preliminary study.

Key words: Microseism parameters, Automatic processing, Database, WEB services, Anomalous variation