Abstract: A System on Seismo-Geomagnetic Data has been developed in Internet environment for the purpose of data sharing and integration of society resources, using Network technology, WebGIS and Database Management system (DBMS). The system can provide information service, data service and function service, which will improve the field and the management of Seismo-Geomagnetic Data application. The four main parts during development, including system principle and function design, WebGIS system, Seismo-Geomagnetic Database system, and Web publishing and sharing system, will be discussed.

Key words: Seismo-Geomagnetism, Geomagnetic data, WebGIS, Data sharing system