🌊 What if a single mega-tsunami swept across Europe? Imagine a sudden rupture deep below the Atlantic, a chain reaction along a hidden fault line. Pressure builds for decades beneath cold black water, until one night the seabed shifts with impossible force. A wall of ocean rises — not a neat wave, but a rolling mountain of water, carrying sand, shattered rock, and the momentum of an entire sea behind it. The first pulse hits Ireland and Portugal within minutes, spraying over coastal cliffs that