Abstract
In this study, situation and agendas of disaster information dissemination at Totsukawa village on the time of Typhoon Talas disaster were cleared. At Totsukawa village, people whose childhood home was Totsukawa village managed Twitter account to support village. The authors analyzed the data of this account from information transmission route and content classification,identified the wide diffusion of content classification, and quantified the wide diffusion of disaster information in chronological order. Then the authors proposed the possibility of effective use of social media considering other disaster information dissemination system.
