This study examines whether disaster experience and awareness, mediated by external locus of control, influence disaster preparedness behavior. Data were collected from 300 people in flood-prone and a further 300 in heat-wave affected areas in Orissa (a state situated in south-eastern part of India). Results reveal that prior experience of hazard events and knowledge of protective actions significantly facilitates flood and heat-wave preparedness. However, locus of control mediates this relationship. Disaster experienced and aware people characterised by having an external control were less prepared. External control partially mediates between experience–behaviour and information–action link. These findings suggest that the effects of personal experience and awareness on self-protective behaviour are weakened by external attribution.