Made a brief post about this event a while back, but here are some more photos and details.
On November 18, 2011, an unusual and tragic tornado event struck the island of Tokunoshima in Japan's Kagoshima Prefecture. It tracked less than a mile, but became intense very quickly and completely leveled a house, killing three people. Their bodies were found nearly 100 meters (328 feet) away from where the home stood. In addition, some debris from the home was blown downwind and a car was thrown 20 meters (60 feet) up a hill. This was Japan's first fatal (and likely strongest) tornado since 2006, and remains tied with the 2006 Nobeoka tornado as the second deadliest ever recorded in Japan. Yet, despite these feats, this storm didn't receive much media coverage.
The tornado was given an F2 rating by the JMA but I strongly feel it should have been rated F3. While the destroyed home was obviously not well anchored, it is still a DOD9 residence and this tornado would have very likely achieved a low-end EF3 rating if it occurred in the US. The damage intensity was pretty much identical to the Ellendale, DE tornado from last year imo.