The latest tsunami to shake the Pacific occurred on March 11, 2023, shaking the islands in the Central Pacific region. This tsunami wave was triggered by an aftershock with a magnitude of 7.1 under the sea, about 150 kilometers from the island of Tonga. This natural phenomenon shook not only Tonga but also neighboring countries such as Fiji and Samoa. The impact of this tsunami was clearly visible from the damage to infrastructure and massive evacuations carried out by local authorities. The waves that occurred were estimated to reach a height of up to 3 meters. Many local residents reported seeing sea water suddenly recede, followed by large waves hitting land. Early warning signals were successfully issued, although there were several incidents where residents did not react immediately, causing some of them to be trapped in the disaster. One of the serious impacts of this tsunami was severe damage to port facilities. The main port in Nuku’alofa, Tonga’s capital, suffered major cracks, which hampered the distribution of aid. Evacuation centers were quickly set up, and rescue teams began working to search for victims and provide aid to those affected. In some locations, difficulties in access to affected places caused delays in the delivery of aid. Fiji and Samoa also experienced the effects of this tsunami. Small waves damaged some structures on the coast, but not to the extent seen in Tonga. These countries issued alert statements and prepared themselves for possible aftershocks. Communication is key in this situation, with local governments relying on social media and radio broadcasts to disseminate the latest information to the public. Within hours of the tsunami, international organizations such as the Red Cross and UNICEF sent humanitarian aid to the affected areas. Special medical teams were also deployed to help meet the health needs of affected communities, as well as provide psychological support for those experiencing trauma due to this disaster. In addition, scientists and geophysicists have begun research into the impact and causes of this tsunami. Data taken from seismic monitoring tools helps them analyze potential future seismic activity. This study is important to strengthen the early warning system and increase public awareness of tsunami risks. Climate change is becoming more of a concern with the increasing seismic activity behavior in the Pacific region. A number of studies state that global warming can trigger an increase in the frequency of natural disasters. Residents on Pacific islands are expected to be better prepared and alert to the risk of similar disasters in the future. The 2023 tsunami left a deep psychological impact on the population. Devastated communities face enormous challenges in recovery. Discussions about improving infrastructure and disaster mitigation policies at the regional level are intensifying. This creates new awareness of the importance of collaboration between Pacific countries in facing increasingly real natural threats. It is hoped that lessons from this disaster can strengthen community resilience against similar events in the future.