Abstract
Questionnaire researches were carried out three times in the same beach. These researches were carried out in August of 2006, August just after the Tohoku Earthquake Tsunami in 2011, and August in 2013 when two years passed after the Tsunami. Using these data, time variation in tsunami awareness of beach users is discussed in this paper. From the results, it is found that the awareness of them became better just after the Tohoku Tsunami, but it has deteriorated with years. Therefore, stakeholders have to consider these results and be planning educational campaigns and so on.
