isis
So why don't you ask the UK government to install a tsunami system around the UK. It's quite simple why tsunami systems are not installed, it rquires many countries to work together around the ocean concerned, if a tsunami has never hit your country in recorded history you would not normaly want to spend money on such a system, this will change in the Indian Ocean since this disaster, but I bet we don't get a tsunami detection system in the Atlantic Ocean until we have a major tsunami disaster nearer to home.