Worst-case scenarios suggest it could devastate 140,000 square miles of the US and affect at least seven million people, many of them swept away by the tsunami that would come in the wake of the ...

The researchers eventually worked out that 25 million cubic metres of rock - a volume equivalent of 25 Empire State Buildings - slammed into the water, causing a 200m-high “mega-tsunami”.

The possibility of a mega-tsunami caused by a volcanic eruption sounds far-fetched, but the premise of Netflix’s newest four-part disaster series isn’t as implausible as it seems. While they’re ...