Some characteristics of the Jingyang M_S4.8 earthquake in 1998 are analysed.The results show that the earthquake is during weaker seismicity in Guanzhong,Shaanxi.Sequence of the earthquake is isolated type and differs from sequences of greater part of historic strong earthquakes in Guanzhong area which are mainshock-aftershock type.The sequence type of the earthquake is very scarce in Chinese continent.The focal mechanism solution of the earthquake shows that the seismogenic fault is left-lateral slip one,the principal stress orientation is NE~SW and identical with the direction of regional stress field of northern China.