Recent Volcano Eruptions: Global Impact and Reaction Mountains, especially in the Pacific ring of fire, are experiencing a significant increase in volcanic activity. The eruption of several volcanoes in the last few months has shocked many people and has had a major impact, both locally and globally. One of the most worrying examples is the eruption of Mount Semeru in Indonesia which occurred in December 2022, which triggered the evacuation of thousands of residents. The local impact of volcanic eruptions is quite large. The volcanic ash produced can cause damage to infrastructure, including roads and transportation access. Apart from that, falling ash also has an impact on air quality. Residents living around volcanoes are often forced to wear masks to protect themselves from fine particles which can worsen respiratory health, especially in children and the elderly. From an economic aspect, volcanic eruptions can also destroy the tourism sector. Many tourist destinations were directly affected. For example, with an eruption, access to national parks and natural tourist attractions could be cut off, harming local businesses. In the long term, recovery may take time to restore already declining tourist confidence. On the other hand, the global reaction to the volcanic eruption shows strong solidarity. Countries, including West Nusa Tenggara, are mobilizing international assistance to provide assistance to the victims. Humanitarian organizations also play a role by distributing aid in the form of food, medicine and protection to displaced residents. On a scientific level, volcanic eruptions give rise to further research on monitoring volcanic activity. Latest technology such as remote sensing and seismic sensors are the main tools for predicting potential eruptions. This research is important to reduce risks and protect the public. In addition, the impact of volcanic eruptions can extend to global climate change. Large particles ejected into the atmosphere can cause a temporary drop in global temperatures, significantly affecting weather patterns. According to a report from the world climate agency, this could affect crop yields and cause food shortages in some areas. International collaboration is also increasingly important in dealing with the impacts of volcanic eruptions. Countries must cooperate on data exchange, monitoring technology and risk mitigation strategies. With the existence of an international communications network, responses to disasters can be carried out more quickly and effectively. In summary, the recent volcanic eruption had a wide impact. From local damage to solid global reactions, challenges continue to emerge in managing the risks associated with volcanoes. Collaborative efforts, ongoing research, and a deeper understanding of volcanic behavior are key to meeting these challenges in the future.