Abstract: In recent years, electromagnetic disturbance method has attracted more and more attention of earthquake prediction experts. However, there are many kinds of observation instruments in our country, and they have different observation objects, bands, configuration, specification and environments, so it has a certain difficulty in sharing and analyzing the observation data as well as the studies on method and theory. In order to normalize and standardize the observation method of electromagnetic disturbance, and to use and share the observational data easily, it is urgent to make a rule on electro-magnetic disturbance observation. The experiment of electromagnetic disturbance observation at Jinghai earthquake station, Tianjin, supported by the Project “Electro-magnetic Disturbance Observation of The Method of Earthquake Geoelectrical Observation”, was carried out and the data were analyzed in detail in this paper, which can provide the basic data and references of the normalization and standardization of electromagnetic disturbance observation.

Key words: Electromagnetic disturbance, Electromagnetic event, Observation system, Check system