houses. it it give us you an idea how strong that tide was when i tell you the house that was built here was pushed 50 feet up the rote to where you look now. at the request of the japanese government, part of the rescue and recovery work has fallen to the uk s international search and rescue team made up of firefighters and rescue workers around the country. they have to sift through the mounds of debris in search of anyone that may be trapped and identify where those who died have washed up. the red logo on the wall signifies where someone has perished. alan downs is from the consent brigade. looking at the waterline on a lot of buildings, it s clear that the tide came in a significant distance. the reality of finding someone alive in the debris is very small. we re obviously continuing to search and keep our hopes up. reporter: the waterline shows