Abstract
Social media such as Twitter, Facebook etc. in addition to the existing media of television and newspaper provide a variety of information during the Great East Japan Earthquake. In this study, Twitter on Kesennuma, local newspapers, global newspaper and TV are analyzed and compared to clarify its characteristics.
As a result, all media used the "evacuation" with the highest importance, all media but excepting Twitter used "debris", "landed of fish" and "temporary housing" with largest importance.
In addition, "Caution" and "Worry" are used by Twitter to ask directly to the residents. Local newspaper reports life information such as store openings and its time. Global newspaper reports the list of the people who are killed by this hazard. The TV reports economical activities, such as "Company", “Business”.
