Tsunami The Biggest Natural Disaster that Rocked the World Tsunamis are large sea waves produced by deep disturbances, such as earthquakes, volcanic eruptions, or landslides under the sea. Of the various natural disasters that exist, tsunamis are one of the deadliest, causing widespread damage and loss of life in various parts of the world. One of the most devastating tsunamis in history occurred on December 26, 2004. An earthquake measuring 9.1-9.3 on the Richter scale off the coast of Sumatra, Indonesia, triggered a tsunami that hit surrounding countries, including Thailand, India, and Sri Lanka. Around 230,000 to 280,000 people lost their lives in this disaster, making it one of the worst in the world. Waves reaching a height of 30 meters destroyed entire cities, infrastructure and coastal ecosystems. Another terrible tsunami event was the Japanese Tsunami on March 11, 2011. Triggered by an earthquake measuring 9.0 on the Richter scale, this tsunami hit the east coast of Japan, causing more than 15,000 deaths, as well as injuries to hundreds of thousands of people. The waves received were able to exceed 40 meters in some areas, damaging the Fukushima Nuclear Power Plant and causing widespread radiation leaks. In terms of frequency, areas located on the Pacific Ring of Fire are the most vulnerable to tsunamis. Here, series of earthquakes and volcanic eruptions occur frequently, increasing the risk of large waves. Countries such as Indonesia, Chile and Japan have always been a focal point regarding tsunamis, given the long history and impact of disasters in this region. Not only in Indonesia and Japan, tsunamis also rocked the southwest region of the United States. The 1964 Alaska tsunami, generated by a 9.2 magnitude earthquake, had major impacts as far away as Hawaii and the US west coast. These high waves killed 131 people and caused material losses reaching billions of dollars. It is important for every country potentially affected by a tsunami to have an effective early warning system. Recent technologies such as satellite technology and underwater sensor networks have helped improve the accuracy of tsunami detection, providing communities with better evacuation times. Community training and education about the risks and how to deal with tsunamis is also highly recommended to reduce the risk of loss of life. In terms of infrastructure engineering, coastal areas must pay attention to development that is tsunami resistant. Sturdy building structures and proper zoning can save many lives. Careful spatial planning and education regarding evacuation locations are very important for public safety. Tsunami as a natural disaster is a phenomenon that cannot be avoided, but its bad impacts can be minimized with good awareness and preparation. Considering that this happened unexpectedly, maintaining vigilance and adhering to safety protocols is crucial in saving lives. History has recorded how devastating tsunamis were, making them one of the most terrifying disasters to ever occur on earth.