Table 2. The results of total risk analyses of dams within the Euphrates basin Dam MCE PGA Hazard Class Hazard rating TRF Risk Class Defination Alpaslan I 6.1 0.368 III High 130.1 III High Alpaslan II 6.3 0.140 II Moderate 118.8 II Moderate Ataturk 5.9 0.132 II Moderate 106.6 II Moderate Birecik 4.8 0.017 I Low 74.7 II Moderate Boztepe 7.0 0.037 I Low 117.5 II Moderate Camgazi 5.4 0.085 I Low 103.8 II Moderate Cat 5.9 0.211 II Moderate 178.5 III High Dumluca 5.7 0.021 I Low 76.3 II Moderate Erzincan 7.9 0.564 IV Extreme 176.8 III High Gayt 7.2 0.081 I Low 164.7 II Moderate Gulbahar 7.2 0.079 I Low 118.1 II Moderate Hacihidir 5.7 0.073 I Low 68.5 II Moderate Hancagiz 4.8 0.014 I Low 55.0 II Moderate Kalecik 7.0 0.111 II Moderate 108.9 II Moderate Karakaya 7.0 0.132 II Moderate 76.5 II Moderate Karkamis 5.6 0.011 I Low 108.5 II Moderate Kayacik 5.6 0.022 I Low 57.8 II Moderate Keban 7.0 0.115 II Moderate 167.8 III High Kigi 7.2 0.252 III High 152.1 III High Konaktepe 7.0 0.242 II Moderate 147.1 III High Kuzgun 7.0 0.180 II Moderate 130.1 III High Medik 5.9 0.035 I Low 93.6 II Moderate Mursal 6.5 0.138 II Moderate 100.0 II Moderate Ozluce 7.0 0.090 I Low 132.2 III High Palandoken 7.0 0.127 II Moderate 194.0 III High Patnos 6.5 0.244 II Moderate 125.8 III High Polat 6.1 0.170 II Moderate 133.9 III High Surgu 5.9 0.256 IV Extreme 186.6 III High Tercan 7.2 0.143 II Moderate 205.1 III High Uzuncayir 7.0 0.260 III High 205.8 III High Yazici 5.6 0.103 II Moderate 117.7 II Moderate Yoncali 7.0 0.048 I Low 104.6 II Moderate * MCE: Maximum credible earthquake (based on local magnitude) PGA: Peak ground acceleration in g TRF: Total risk factor