Two United Airlines planes collided at a California airport — creating a jolt that felt like an “earthquake” to some passengers, according to authorities and reports.

One of the plane’s pushed back from the gate at San Francisco International Airport and struck the tail of the other, which was parked, around 9:10 p.m. on Monday evening, a United spokesperson told The Post.

The two planes collided on Monday evening at San Francisco International Airport as one United aircraft pushed back from the gate, striking the tail of a parked United Airlines plane. Leonard Reyno

The Boston-bound aircraft was parked and loading passengers when a Denver-bound flight struck its tail, Newstalk 1090 reported.

The collision occurred in an area where air traffic controllers do not communicate with flig

See Full Page