09:32Science In ActionTonga eruption – how it happenedBBC World Service Duration: 30 minutes Fri 21st Jan 2022, 09:32 on BBC World Service Europe and the Middle EastAvailable for over a yearListen nowWhy a small volcanic eruption had a global impact Show more GenresFactualScience & NatureFormatsMagazines & ReviewsBrandScience In Action Source: BBC Online