The latest tsunami that hit various parts of the world, especially vulnerable areas such as the Pacific and Indian Ocean, has changed many aspects of local people’s lives. These giant waves, caused by earthquakes, volcanic eruptions or underwater landslides, have real and terrifying impacts. Recent data shows that material losses and casualties have increased significantly, demanding global attention. The social and economic impact of the tsunami was enormous. Infrastructure was destroyed, leaving thousands of people homeless. The fishing and tourism sectors, which are mainstays of the local economy, have also been hit hard. In the long term, recovery requires large investments and a short period of time. Affected communities are often trapped in cycles of poverty, with limited access to education and health. The Global Emergency Response took center stage after the tsunami waves. Neighboring countries and international organizations such as the UN and the Red Cross immediately sent humanitarian aid. Rescue teams from developed countries rushed to the disaster site to provide support. This is a form of global solidarity that shows concern for the fate of those affected by disasters. Modern technology plays an important role in mitigating tsunami risk. An integrated early warning system, utilizing sensors in the ocean and seismic data, allows the public to get information quickly. The use of social media also helps in the dissemination of information, facilitating communication between citizens and authorities. Education regarding evacuation and tsunami preparedness is becoming increasingly important. Local governments in various countries are starting to prepare post-tsunami sustainable development plans. Developing more resilient infrastructure, such as earthquake-resistant buildings and good drainage systems, is a main focus. Environmental conservation, such as restoring coral reefs and mangrove forests, is also considered important in reducing the impact of future tsunamis. From a global perspective, research on tsunamis is increasing, with collaboration between scientists from various countries to understand the patterns and potential of future tsunami waves. Computer simulations and predictive models are now being used to map vulnerable areas, providing opportunities for better preparation. Adoption of data-driven policies and scientific research is essential. Governments and international organizations need to work together to create comprehensive and responsive policies against the tsunami threat. Investments in technology and education, as well as increasing public awareness, will provide a strong foundation for dealing with future disasters. All these efforts indicate global seriousness in facing the challenges of natural disasters, especially tsunamis, which are phenomena that cannot be predicted but can be anticipated with the right steps. Sustainability, preparedness and cooperation between countries are key to reducing the impact of the next tsunami.