The terrifying moment a 7.0 earthquake rocked Anchorage, Alaska, instigating a Tsunami warning on Friday.

"During orchestra we were just playing and all of a sudden the entire room started shaving some class mates started crying," said the filmer. "The ceiling was about to fall off, the ceiling was made out of panels. Our teacher instructed us to cover our heads under our chairs as shown in this video," he added.

The epicentre was around 8.5 miles from the city, according to the US Geological Survey.