The Severn Tsunami?

Description

Ar 30 Ionawr 1607, ysgubodd ton enfawr dros 7 medr o uchder i fyny afon Hafren, llifodd dros ei glannau a chyrhaeddodd hyd at Fryste a Chaerdydd. Ysgubodd y don bopeth o’i blaen, gan ddinistrio cymunedau a lladd miloedd o bobl. Hwn oedd un o drychinebau naturiol mwyaf Prydain.
On 30 January 1607 a huge wave, over 7 meters high, swept up the River Severn, flooding the land on either side. The wall of water reached as far in land as Bristol and Cardiff. It swept away everything in its path, devastating communities and killing thousands of people in what was Britain’s greatest natural disaster.