MACROSCOPIC ANOMALIES BEFORE AND AFTER LiyANG 6.0 EARTHQUAKE

This paper fully summarizes the macroscopic anomalies of groundwater, oil and gas dynamic state, felt ground motion, ground deformotion before and after Liyang 6.0 earthquake on June 9, 1979 and analyzes the time-space distribution and migration characteristics of the macroscopic anomalies. Finally, the relationship betveen macroscopic anomalies and regional stress activity and that between earthquake after effct and precursors are discussed.