In this study, it was aimed to develop a measurement tool that can measure the earthquake fear levels of middle and high school adolescents who experienced an earthquake. The study conducted with the descriptive survey model. The sample consisted of adolescents studying in middle and high schools. Factor analyses were applied to test the construct validity of the scale. First, exploratory factor analysis was conducted. Exploratory factor analysis revealed that the scale consisted of two factors (worry and physical symptoms), and explained 65.52% of the total variance. First and second level confirmatory factor analysis were applied to confirm the structure obtained as a result of exploratory factor analyses. Confirmatory factor analyses confirmed the model structure of the scale. For the reliability research, Cronbach's Alpha coefficient was calculated, the lowest 27% group was compared with the highest 27% group, and the correlation between the two measurements was examined by applying the test-retest procedure. At the end of the study it was determined that the scale was reliable based on the values obtained.