Serious injuries from in-flight turbulence are rare, but scientists say they may be becoming more common as climate change alters the jet stream.

Some passengers were terrified, convinced the plane was going down. One seasoned traveler said it was the roughest flight he’d ever taken. A woman on board felt like she was experiencing an earthquake.

Flight DL56 was forced to make an emergency landing in Minneapolis two hours into its journey to Amsterdam, the airline says