Latest Volcano Erupts in Indonesia: What You Need to Know Indonesia, as an archipelagic country located on the Pacific Ring of Fire, has more than 130 active volcanoes. In recent times, the phenomenon of volcanic eruptions has again attracted public attention. One of the most recent is the eruption of Mount Semeru, which occurred in December 2021, triggering the evacuation of thousands of residents and affecting the transportation system, including air routes. Mount Semeru is the highest mountain on the island of Java and is known as one of the most active volcanoes in Indonesia. Volcanic activity on Mount Semeru is relatively high and has been going on for the last few years. This latest eruption produced hot clouds that shot towards the surrounding villages, making it a quite serious natural disaster. In this situation, it is important for the community to understand the disaster mitigation steps that need to be taken. Vigilance is key in dealing with potential eruptions. Communities around vulnerable areas must always pay attention to information from the Meteorology, Climatology and Geophysics Agency (BMKG) and the Center for Volcanology and Geological Disaster Mitigation (PVMBG). Information regarding the status of volcanic activity, the possibility of an eruption, and evacuation recommendations are very important to reduce risks to the safety of residents. Monitoring equipment and facilities are constantly updated to detect signs of volcanic activity. GPS, seismographs and visual observations are an important part of the mitigation strategy. In addition, people need to be trained to recognize the early signs of an eruption, such as an earthquake, the sound of an eruption, or changes in the surface of the mountain. Routine education and evacuation simulations are highly recommended so that the public is prepared if an emergency situation occurs. Apart from Mount Semeru, Mount Merapi in Yogyakarta and Mount Sinabung in North Sumatra also frequently experience eruptions. Research on volcanic patterns and behavior on these three mountains has been carried out by scientists to increase understanding of the potential dangers that may arise. Volcanic eruptions not only impact local communities, but can also affect the global climate. Dust particles and sulfur gas released into the atmosphere can cause temporary temperature drops in some areas. Long-term impact analyzes are ongoing to predict possible effects on the environment and human health. As the frequency of eruptions increases, knowledge of the risk of volcanic disasters becomes increasingly important. The public is expected to always follow the latest developments and follow instructions from the authorities. The government also plays a role in providing infrastructure and resources to support better disaster management. In the context of tourism, volcanic eruptions can be a special attraction. We can see how nature recovers after a disaster, although it is important to remember that safety must always be a priority. The existence of climbing routes and appropriate information about safety is very important for climbers and visitors. Based on all this information, it is important for Indonesians to realize how significant the risks posed by volcanoes are. Even though the natural beauty on offer is very tempting, safety and vigilance remain the main thing. Prepare yourself, know the evacuation location, and always obey instructions from the authorities to keep yourself and the people around you safe.