BRITAIN isn’t known as a tsunami hotspot – but it’s been struck by giant and terrifying waves. The biggest that we know of ...

Tsunamis are large, powerful waves caused by the displacement of water in an ocean or large lake. They are sometimes referred to as tidal waves, although they have nothing to do with the tides.

Here's what you need to know... Tsunami is a Japanese word used to describe huge waves – generally on oceans, but sometimes in lakes or large rivers. Ocean tsunamis are caused by sudden motions ...