Integration of ground subsidence hazard maps of abandoned coal mines in Samcheok, Korea

► We analysis ground subsidence hazard area by abandoned coal mines using a geographic information system (GIS) and integrated techniques. ► For the integration analysis, the ground subsidence hazard maps from the frequency ratio, weights-of-evidence, logistic regression, and artificial neural network models are considered for new input or relevant factors. ► Integrated ground subsidence hazard maps are again calculated quantitatively using the four models. ► The maps derived by integration models show the better result than individual ground subsidence hazard maps.