Tonga - Volcanic Eruptions and Tsunami Fact Sheets Fiscal Year (FY) 2022

The fact sheets provide an overview of the humanitarian situation in Tonga following the January 14–15, 2022 eruptions of the Hunga Tonga–Hunga Haʻapai volcano and the resulting tsunami. They report that nearly 85,000 people were affected nationwide, with significant displacement, loss of housing, and damage to essential services. The documents situate the disaster within Tonga’s broader vulnerability as a Small Island Developing State exposed to sudden-onset geological hazards.

The reports summarize key impacts across sectors, including water, sanitation and hygiene (WASH), shelter, food security, livelihoods, health, and protection. Ashfall and seawater inundation contaminated water sources, disrupted rainwater harvesting systems, and damaged agricultural land and fisheries, which are critical to household livelihoods. Telecommunications were severely affected due to damage to the undersea cable linking Tonga to Fiji, complicating coordination and information sharing during the response. The situation was further strained by the emergence of COVID-19 cases and associated lockdown measures.

The fact sheets also detail national, international, and U.S. Government response efforts, including USAID/BHA funding, cluster coordination, and sector-specific assistance delivered through UN agencies, the Red Cross movement, and NGOs. They highlight the need for continued humanitarian assistance, alongside early recovery, disaster risk reduction, and resilience-building measures such as improved monitoring, early warning systems, and inclusive preparedness planning. Overall, the documents support informed response and recovery planning following complex, multi-hazard disasters.