Taken from here.
LONDON (Reuters) –
A 10-year-old British girl saved 100 other tourists from the Asian tsunami having warned them a giant mass of water was on its way after learning about the phenomenon weeks earlier at school
"I was on the beach and the water started to go funny," Tilly Smith told the Sun at the weekend from Phuket, Thailand.
"There were bubbles and the tide went out all of a sudden. I recognised what was happening and had a feeling there was going to be a tsunami. I told mummy."
While other holidaymakers stood and stared as the disappearing waters left boats and fish stranded on the sands, Tilly recognised the danger signs because she had done a school project on giant waves caused by underwater earthquakes.
Quick action by Tilly’s mother and Thai hotel staff meant Maikhao beach was quickly cleared, just minutes before a huge wave crashed ashore. The beach was one of the few on the Thai island of Phuket where no-one was killed.