Abstract
The purpose of this research is to build the spatiotemporal model for appropriate or necessary disaster responses. This paper proposes the running spectrum technique of text data to analyze the change or trend in the disaster management cycle as a first approache of final goal of this research. The news reported by Fukushima- Minpo newspaper is used for the verification of the technique. The result can show the dynamic characteristics of the data that change in time domain. As time goes on, more digital data/information in addition to Tohoku disaster can be available. Then, the proposed technique will be more efficient and effective to analyze huge digital information for appropriate understanding of the process of the events and occurrences.
