Disasters are situations which leave an indelible mark on the lives of individuals, and cause both physical and psychological trauma. In order to prevent negative consequences of disaster experiences, psychological support treatments appropriate for individuals should be provided at each phase of the disaster. It is suggested that psychological first aid (PFA) is the very first treatment provided right after the disaster. It is also the most essential component of the psychosocial support intervention. Psychological first aid is a supportive treatment provided for individuals living under intense stress. Nurses, who have professional knowledge and skills to provide this treatment, are the crucial help providers. Nurses, who are able to provide psychological first aid to individuals after a disaster, are critical in preventing risks that may develop, and in speeding up the recovery process for individuals. Nurses can improve their own endurance through psychological first aid and reduce their work stress. Nurses, who are able to provide psychological first aid, are very important for both the individuals exposed to the disaster, and for themselves.