There have been seven shark attacks in North Carolina since June 11. 

This is already more than last year, when the state saw four attacks. In the previous decade, there were only 25 shark attacks in North Carolina. And there have been just 55 documented shark attacks in the state between 1905 and 2014.

So what’s going on this year?

“It’s kind of a perfect storm,” says George H. Burgess, the director of the International Shark Attack File at the Florida Museum of Natural History. Burgess says across the United States overall, shark attacks are on pace with an average year, and the chance of getting bit is still very low—an estimated one in 11.5 million for an ocean