Understanding the Anak Krakatau eruption - a podcast by BBC World Service

We have the latest from a year long investigation into the causes of the December 2018 Indonesian Tsunami. And we get a look at the first pictures from the Mayotte undersea volcano, which emerged earlier this year off the coast of East Africa.

(Anak Krakatau volcano. Credit: AFP/Getty Images)

Presenter: Roland Pease
Producer: Julian Siddle

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