World Tsunamis: Understanding the Global Threat Tsunamis are natural phenomena that can destroy entire communities in a matter of minutes. Occurring as a result of earthquakes, volcanic eruptions, or landslides on the seabed, tsunamis can cause waves tens of meters high. This phenomenon is not only a local threat, but also a global one, considering that many countries along the “Pacific Ring of Fire” are vulnerable to tsunamis. It is estimated that almost 70% of the world’s population lives in coastal areas, making them particularly vulnerable. In Indonesia, for example, tsunamis have claimed thousands of lives, as in the 2004 disaster that hit Aceh. Therefore, it is important to understand the mechanisms, impacts and ways to mitigate tsunamis. Tsunami Mechanism Tsunami waves often arise as a result of friction in the earth’s crust. Strong earthquakes at volcanic centers create vibrations that disturb the water column, producing huge waves. One tsunami wave can last from several minutes to several hours, with speeds of up to 800 km/h in the deep ocean. As waves approach shore, their speed slows, but their height increases, potentially destroying infrastructure. Social and Economic Impacts The impacts of the tsunami were very broad and multi-dimensional. From a social perspective, this disaster can damage community networks, creating long-term trauma for survivors. Additionally, many individuals lost their homes and sources of income, which impacted the overall well-being of society. From an economic perspective, losses could reach billions of dollars. Critical infrastructure such as ports, roads and health facilities are often the main targets, slowing recovery. The combination of human and economic losses creates significant recovery challenges. Mitigation and Preparation To reduce the impact of the tsunami, communities and governments need to prepare mitigation strategies. This includes establishing an efficient early warning system, educating the public regarding warning signs, and safe spatial planning. Apart from that, evacuation training must be carried out regularly, so that the community can respond quickly. Modern technology offers new solutions with the use of underwater sensors and modeling algorithms. This can provide earlier warning and improve the accuracy of wave forecasts. Investing in infrastructure that can withstand tsunamis is also critical to reducing damage. Global Awareness Tsunami is a threat that is not only experienced by countries on the seashore. In a global context, international cooperation is needed to share data, technology and experience. International organizations such as the United Nations (UN) and the Tsunami Warning Center play an important role in coordinating responses to disasters. Education and public campaigns around the world can also increase awareness about tsunamis. The global community needs to know that preparing for a tsunami is a shared responsibility. Every individual can contribute to increasing community resilience to disasters. By understanding the tsunami threat and implementing preventative measures, we can protect ourselves and future generations from this devastating disaster. Knowledge and vigilance are key to facing the challenges posed by this natural phenomenon.