Disaster memorials have emerged as pivotal approaches for not only commemorating disasters but also imparting lessons to future generations. However, despite discussions on preservation, little involvement has been reflected in the impacts of different memorial patterns in disaster risk reduction (DRR). This study examines the roles of disaster-related memorial facilities in DRR, exploring how distinct memorial patterns transfer disaster experiences to future generations. This research is based on a quantitative strategy, applying an online questionnaire with 538 respondents who visited the three selected sites under the background of the Great East Japan Earthquake and Tsunami (GEJET) to identify their triggers and purpose for visiting, the impact of facilities on raising disaster awareness, the practical contents, and the important roles of DRR. The findings reveal that while all three facilities contribute to DRR with the same most important role as disseminating the lessons of the GEJET, their impact on visitors’ disaster awareness varies. Sendai Arahama Elementary School particularly raises awareness of disaster threats, while the Higashi-Matsushima Memorial Museums and the 3.11 Memorial Community Center enhance visitors’ disaster-related knowledge. Visually stimulating exhibits in the facilities, such as remains, photos, and videos, underscore the importance of disaster preparedness, while panels and science exhibits offer comprehensive insights into disaster-related knowledge. However, none of the three sites have significant roles in deepening regional exchange.