THE APPLICATION OF LACK-OF-EARTHQUAKE CURVE IN ANALYSIS OF THE SEISMIC ACTIVITIES

First,the definition of lack of earthquake curve is introduced,then the situation of the seismic activities in Hebei province is introduced.After that,combining with the comprehensive analysis of several window lengths based on field precursor characters,a statistical analysis is made for the seismic activities in Hebei province and its adjacent regions.Finally the analysis results of the seismic activities are summarized.