Japan’s Nankai Trough megaquake – can you predict it?

Shaimaa Khalil,BBC News, Tokyoand

Flora Drury,BBC News, London

AFP via Getty Images A vehicle rests on the edge of a collapsed road in Tohoku town in Aomori Prefecture on December 9, 2025, following a 7.5 magnitude earthquake off northern JapanAFP via Getty Images

After a magnitude 7.5 earthquake struck north-eastern Japan on Monday, authorities again warned of the possibility of a future megaquake.

It means that thoughts in…

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