1. The document discusses the 2011 Unmyong-san disaster in South Korea and comments on the concluding remarks of a report on the disaster. 2. It notes that thick colluvial deposits and a shallow groundwater table suggest a high risk of landslides in the area. Early warning systems could have helped save lives even if the damage could not be avoided. 3. Reservoirs may have contributed to longer runouts of debris flows. Ground vibrations from underground blasting are unlikely to have directly caused landslides but could have increased cracking and affected groundwater, with long-term impacts on slope stability.