Continuity: In the office tower after the quake there is a panic and workers rush down the stairs only to find them fallen away. After two women fall to their death a man is left hanging on a girder, but falls onto a giant piece of glass. Look at the top of the frame and you will see the airbag shooting our from under it.

Continuity: When the office worker loses his grip on a girder, he falls through a pane of glass below. Just seconds earlier, two women fell from about the same spot, yet the glass was not broken and there is no sign of their bodies.

Revealing: When the airplane is coming in for a landing, we see an exterior shot of the plane shaking violently well before it has touched down. Clearly the "earthquake" effect is achieved by merely shaking the camera.

Factual error: During the earthquake, a man reaches out of the window to try to rescue the two window cleaners, who are clinging to the rig. They fall to their deaths. In reality, these guys would have been wearing safety harnesses that secured them to the rig.

Other: During the quake, we see the furniture, wall panels, ceiling tile, windowpanes, vertical blinds, etc., in the office fall, shake, or crack. Yet the leaves of a large potted plant do not move at all.

Continuity: Marjoe Gortner's hairstyle alternates several times between curly and straight.

Continuity: When the aftershock hits L.A. and destroys Wilshire Plaza, the camera shows the destruction underground and at some point a brick pillar falls over. Instead of being made of brick it's really made out of wood with brick type wallpaper. You can tell this because if the pillar was really made of brick, when it fell over chunks of brick would at least break off.

Continuity: During the quake, a mother is seen having a plate glass window fall on her face while her daughter screams. Before the mother turns around to show us the gore, look close and you can see a shard of glass already "placed" in her face before the fake glass falls her. Additionally, while not a "mistake", it's clearly a "stuntman" portraying the mother. The face and yelping give it away.

Continuity: During the scene at the airport when the tower OK's the plane to land we can see it is a 707 with TWA-like colors of red and white. Then when there is the shot of the plane on the ground it turns into a DC-8 with orange markings. When the plane takes off into the air the camera shows the 707 again.

Other: Early in the movie, a woman walks up to the elevator and presses a button, thereby letting all the people who had been standing there doing nothing into the elevator, but she doesn't get in herself. Why didn't that big group of people just press the button themselves?