 This in turn will generate a huge tsunami, which will surge into the Atlantic Ocean and hit Spain, Portugal, the east coast of the United States, France, the southern and western parts of Ireland and the south coast of England.It is estimated that the waves will take around 6 hours to reach the British Isles, and that when they do they will be around 10 metres (30 ft) high.Britain would be badly hit, and it is believed by some that if nothing is done, thousands of lives will be lost.