The Joplin tornado was in 2011, not 1947. What is most likely confusing you is that the Joplin tornado is the deadliest U.S. tornado since 1947. The tornado that sources are referring to in that year was the one that struck Woodward, Oklahoma on April 9, 1947 killing 181 and causing as much as $173 million in damage.
The Joplin tornado struck the city of Joplin, Missouri.
No tornado hit Joplin, Missouri in 2012. However, Joplin was devastated by an EF5 tornado on May 22, 2011. That tornado directly killed 158 people, the deadliest to hit the U.S. since 1947. Three or four other people died due to indirect effects.
The 2011 tornado was not the first to hit Joplin and it almost certainly will not be the last. Joplin probably will be hit by another tornado eventually, but there is no telling when. The chances of another one anywhere near as bad as the 2011 storm are remote, however.
No. Joplin is in Missouri and so was the tornado that hit it.
The Joplin, Missouri tornado occurred on May 22, 2011.
The Joplin tornado traveled about 22 miles in total. It was in Joplin for about 7 miles.
The Joplin tornado caused about $2.8 billion worth of damage to the city of Joplin.
The Joplin tornado struck the city of Joplin, which is in the southwestern corner of Missouri in the central United States.
The Joplin tornado occurred on the afternoon of May 22, 2011.
The Joplin, Missouri tornado occurred on May 22, 2011.
The Joplin tornado traveled 22.1 miles.
The Joplin, Missouri tornado struck on Sunday May 22, 2011.