The latest tsunami threatening the Pacific Ocean region has become a global concern after a series of strong earthquakes occurred in the region. This natural phenomenon has not only attracted the interest of scientists but has also sparked concern among residents living in vulnerable areas. This article will explore the main causes of tsunamis, their impacts, as well as mitigation measures taken by relevant countries. In recent weeks, there has been some seismic activity in the Ring of Fire, a zone around the Pacific Ocean basin known for its earthquake and volcanic activity. Earthquakes of magnitude 7.0 or greater, which occur in tectonic plates, can produce dangerous tsunami waves. When these plates move against each other, the accumulated energy can be released in the form of huge waves that wash up on the coast. After the earthquake, the Meteorology, Climatology and Geophysics Agency (BMKG) in various countries immediately issued a tsunami warning. For example, when an earthquake occurred around the Philippines, BMKG and international seismic agencies immediately disseminated information to give residents time to prepare for evacuation. Tsunami waves can arrive within minutes of an earthquake, spreading rapid and devastating impacts. The impact of this tsunami was very destructive, especially for coastal communities. Many buildings were destroyed, road access was cut off, and basic infrastructure such as electricity and clean water became non-functional. Countries located on the edge of the Pacific Ocean, such as Japan, Indonesia and Chile, are renowned for their skills in responding to disasters, but challenges always exist. After the incident, these countries often carry out damage assessments and rescue work. Recovery programs are often launched to help communities return to normalcy. Modern technology now allows them to monitor tsunami movements more effectively. The early warning system has been improved, ensuring that information about tsunamis can be quickly passed on to the public. Mitigation measures also include building better infrastructure, such as tsunami walls, designed to protect vulnerable areas. Education about how to deal with tsunamis is also a main focus. The community is taught how to recognize the signs of an approaching tsunami and safe evacuation routes. With technological advances and international cooperation, it is hoped that the impact of future tsunamis can be minimized. Continued research on tsunami patterns and behavior will help prepare communities and strengthen disaster mitigation policies. Therefore, collaboration between scientists, government and society is very important to increase resilience to disasters. Public awareness programs and evacuation training are regularly held. Learning from previous disaster experiences, countries are working to create a strong culture of preparedness. Other alternatives in mitigation also include creating clear disaster risk maps, so that people can know the level of risk in their area. The earthquake and tsunami that occurred in the Pacific Ocean continue to remind us of the unpredictable power of nature. Although we cannot stop this phenomenon, preparedness and improving early warning systems will be key to reducing loss of life and property. One thing that is certain is that past experiences play an important role in shaping future strategies in facing the challenges of natural disasters.