EVOLUTION CHARACTERISTIC OF VERTICAL DEFORMATION FIELD IN WEST OF LIAONING PROVINCE AND RELATION BETWEEN IT AND ZHANGWU EARTHQUAKE
Lu Liangyu Lin Yuxiang(Seismological Bureau of Liaoning Province)
In this paper,the evolution characteristic of vertical deformation field in thewest of Liaoning has been studied.The results show that this evolution is possessed of clearfeature of period and zoning.Before 1982,Zhangwu,Xinmin areas are relative dense zone of the deformation gradient,and here deformation isolines start turning. From 1982 to 1984,accelerated elevation ap-peared in Xinmin.After Zhangwu earthquake,the subsidence band in which the largest one ismore than 30 mm appeared in the epicentral area in direction NW. The differential movementof the deformation in this area has concentrated in the northern part since 1958.The Raoyangriver fault is active in modern times.
【CateGory Index】： P315.725