To protect evacuees in a large-scale earthquake, it is necessary to provide information that enhances a sense of threat, and encourages them to take immediate evacuation action. This study focuses on text notifications on smartphones, and investigate what kind of information expression is effective. Specifically, we compare the texts representing “danger” and “safety” respectively. The “dangerous” text indicates that a dangerous situation is approaching, while the “safe” text indicates that the situation is not safe, or that the safe situation will not be continued. This study verifies the effects of these two perspectives on awareness of evacuation and degree of threat to the disaster. That is, the same situation is presented in texts from the two different perspectives, and respondents answer their impressions of the texts. The results show that the “dangerous” text when the damage will be large and the “safe” text when the damage will be small increases the awareness of evacuation behavior.