CN MID-TERM EARTHQUAKE PREDICTION METHOD AND THE CHECK OF ITS APPLICATION IN NORTH CHINA REGION

By two kinds of zonings and two kinds of targets division, the application of CN algorism of TIP mid-term earthquake prediction method is checked in North China Region.The result indicates that 80 percent of the checked moderately strong earthquakes showed TIP, the longest duration time of TIP is more than three years, the shortest one is 0.7 month, its average is about 14-16 months.The warning time intervals of TIP made up 32 percent of the total studied time, the accurate prediction rate R value of comprehensive calculation is about 0.5.It is indicated that the method can yet be regarded as a better mid-term earthquake prediction method, which is significant in North China Region.Finally,some respects which have yet to be proved of the method are briefly discussed.