'It's not a question of if, it's a question of when. It may not occur
for a thousand years ... Or it could happen tomorrow.'
Geophysicist Xavier Delacrúz roams the Cumbre Vieja volcano
on La Palma in the Canary Islands.
Soon he detects sulfur dioxide — the precursor to an eruption.
A small fissure, motionless for more than half a century opens
into a yawning rupture and Delacrúz embarks upon a desperate
race to warn a world ill-prepared for, and in denial of the greatest
natural disaster in history — a mega-tsunami that will claim the
lives of millions.