Abstract: In November 1992, a Sino-Japan cooperation project of electromagnetic wave observation and research started in Dali, the observed data got from this project recorded factually the whole anomaly developing process of 29 earthquakes, including Lijiang earthquake with M 7. 0 on Feb. 3, 1996. Through the comparative observation and analysis, it is found that there are 3 kinds of electromagnetic wave anomaly developed, and 3 corresponding tentative prediction regulations and models by using electromagnetic wave are proposed to predict strong earthquakes. The authors also analyzed and discussed the advantage of the TOA electromagnetic wave monitoring system as a hopeful observational approaches and equipment for precursory mformation of strong earthquakes. The results will promote the observation and research of the seismic electromagnetic wave for short-term or imminent earthquake prediction in future to a certain extent.

Key words: Principal signal, Prediction regulation, Anomaly information quantity, Ideal frequency band, Electromagnetic seismogram