The latest global tsunami shows how natural disasters can have a large and profound impact on global society. Understanding the impact of tsunamis and the responses provided is important in risk mitigation and disaster management. In recent years, several countries such as Japan, Indonesia, and New Zealand have experienced tsunamis forcing governments, non-governmental organizations, and the international community to work together to respond to these disasters. The impact of the tsunami can be felt in various aspects. First, there are devastating physical impacts, such as infrastructure damage. Bridges, roads and buildings are often the main victims, causing disruption to transportation and distribution of goods. Additionally, the social impact cannot be ignored. Thousands of people are often left homeless, increasing the number of refugees in already vulnerable locations. The economic aspect was also badly damaged after the tsunami. Economic losses could reach billions of dollars, affecting the tourism and fishing industries. For example, the tsunami that occurred in Aceh, Indonesia, in 2004 caused losses not only in the physical sector, but also in the mental sector of the community, who had to fight back from the trauma. Responding to the tsunami requires solid international cooperation. After a disaster, emergency aid often arrives from various countries. Throughout 2021-2023, we see global initiatives empowering local communities, from preparedness training to the development of predictive technology. For example, GPS-based applications were developed to monitor ocean wave movements and provide early warnings. In addition, public education and awareness about tsunamis is becoming increasingly important. Many countries are now launching educational programs in schools to teach disaster prevention, evacuation measures, and how to deal with tsunamis. This is a preventive step that is expected to reduce the number of victims in the future. The role of international bodies such as the United Nations Office for Disaster Risk Reduction (UNDRR) is also worth noting. They contribute to building a global framework focused on reducing disaster risks and increasing community resilience. Through conferences and workshops, UNDRR brings together experts from various fields to share knowledge and experience. No less important is the role of technology in disaster response. Data obtained from satellites and underwater monitoring tools is used to increase prediction accuracy. With the latest technology, such as a future tsunami monitoring system that is more responsive and real-time, it is hoped that it can increase response efficiency in the field. Local communities also have an important role in dealing with tsunamis. Building community solidarity after a disaster is very important for recovery. Aid schemes that involve local residents are often easier to deliver and enable communities to get back on the road to recovery more quickly. Reflecting on the previous tsunami, it is important to build a better system. Collaboration between governments, communities and international organizations is the key to a safer future. Resilience against tsunamis must be increased through education, technology and community preparedness. Thus, a proactive approach in dealing with tsunamis will reduce social, economic and environmental impacts. Tsunamis may be unavoidable, but our attitude and how we respond to these disasters can make a significant difference.