Page - 459 - in Book of Full Papers - Symposium Hydro Engineering

Fig. 3 Time variations of magnitude (bottom vertical line) Blue curve: water level Fig. 4 Spatial distribution of epicenter in Shanxi reservoir region after impoundement The size of the circle is proportional to the magnitude; F1, Jiangkou-Huixi fault; F2, Yanshang-Chengken fault; F3, Shuangxi-Jiaoyangxi fault. 2.3. SPATIAL DISTRIBUTION There are 14 faults developed in research area[1], in which F1 (Jiangkou- Huixi fault), F2 (Yanshang-Chengken fault) and F3 (Shuangxi-Jiaoyangxi fault) are considered to be the main-controlled-fault[3]. The fault F3 have 3 branch faults (F3- 459