Happy ending for that Japanese dog who survived three weeks at sea on a roof after being swept away by the earthquake-generated tsunami. She and her owner were reunited today, according to news reports.

The unidentified owner, a woman in her 50s, saw a TV news report about the Japan Coast Guard's rescue Friday and went to the animal care center in Tomiya, Miyagi Prefecture, NHK TV says.

The 2-year-old dog, named Ban, greeted her owner "with joy, jumping and wagging her tail."

''We'll never let go of her,'' the owner was quoted as saying by a center official, according to Kyodo News, which portrays the reunion as more subdued, writing that the dog "happily wagged her tail when the owner appeared."

Ban was found about 1.2 miles offshore on the roof of a house, part of a debris field the coast guard was investigating.