English: On 15 January 2022, the Hunga Tonga-Hunga Haʻapai underwater volcano erupted in the Tonga Archipelago. According to scientists from the University of Auckland, the eruption was the most powerful recorded on Earth in the past 30 years and it triggered a 1.2-metre-high tsunami that hit the coastal areas of Tonga’s capital, Nuku’alofa. The disaster heavily impacted the local population, the environment, and the economy: communities, roads, and airports were covered by thick ash, and floodwaters damaged infrastructure, homes and schools. Power and communication channels were disrupted for days, with internet connection being restored only 5 weeks after the eruption. The World Bank has estimated the total bill for the damage to be above €80 million, which is equivalent to more than 18% of the gross domestic product of the small Kingdom of Tonga. According to the Food and Agriculture Organization of the United Nations (FAO), one of the consequences of the Tonga eruption was the significant damage that the island’s vegetation and crops have suffered, mainly as a result of the ashfall. However, three months after the eruption, the vegetation on the Nomuka, Nomuka Iki and Mango Islands is starting to recover as shown in these images, acquired by the Copernicus Sentinel-2 satellites on 24 January 2022 (left) and 14 April 2022 (right), three months apart. Data retrieved from Copernicus Satellites and the Copernicus Services help assess the aftermath of natural disasters such as volcanic eruptions and tsunamis, supporting emergency response and recovery activities.