The natural disaster that occurred in Palu City, Donggala Regency and Sigi Regency, Central Sulawesi on September 28, 2018 resulted in enormous losses ranging from property to thousands of dead victims. This study aims to determine the interpersonal communication of victims of natural disasters to volunteers in Central Sulawesi. This interpersonal process uses a dimension of self-disclosure. Qualitative research method with a case study approach. The results showed that in the process of delivering messages, victims told more about their life experiences when a disaster struck which resulted in loss of property and loss of family life (closest people). In the process of a disaster, they as victims try to save themselves to a safer place even though they have to be far away from their families, causing them to be anxious and afraid.