{"entity":{"iso2":"TO","iso3":"TON","name":"Tonga","slug":"tonga"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"significant-volcanic-eruptions","source":"National Geophysical Data Center / World Data Service (2025) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/significant-volcanic-eruptions","title":"Number of significant volcanic eruptions","unit":"events"},"observations":[{"date":"1853-01-01","value":1.0},{"date":"1886-01-01","value":1.0},{"date":"1892-01-01","value":1.0},{"date":"1907-01-01","value":1.0},{"date":"2022-01-01","value":1.0}],"summary":{"latest_period":"2022-01-01","latest_value":1.0,"max":1.0,"mean":1.0,"min":1.0,"of":25,"rank":6,"trend":"flat"}}