Abstract: There are several moderately strong earthquakes occurred before Menglian earthquake,which is useful to the location prediction of the strong earthquake followed. But it is still a difficult problem whether a strong earthquake will occur or not after moderately strong earthquakes have occurred in an area.On the other hand,it is another problem that how long an expected strong earthquake will occur after the occurrence of a moderate earthquake.This paper has provided answers to the problems mentioned above using “Hierarchy Method” to Menglian earthquake.According to the “Hierarchy Method”,the parameters of Menglian earthquake are predicted as location:$22 \stackrel{\circ}{\mathrm{N}}, 99 \stackrel{\circ}{\mathrm{E}}$;magnitude:7.3;date: July 12,1995,indicating that there is no difference with the realistic parameters of Menglian earthquake.

Key words: Hierarchy Method, Moderately strong earthquake, Strong earthquake, Short-term and imminent prediction