Scientists warn that similar event to collapse of volcano on Cape Verdean island of Fogo 73,000 years ago poses major threat to nearby islands

The sudden collapse of a volcano caused a tsunami that created waves up to 240 metres (800ft) high 73,000 years ago, scientists have discovered.

The mega-tsunami took place near the Cape Verde islands off west Africa when the slopes of the volcano gave way – a process known as a “flank collapse” – and some experts fear a similar collapse could present a real threat today, especially around volcanic islands.

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Source: Guardian Environment