Continuity: When the female nurse is in her 4x4 vehicle, she looks in her mirror and sees two fire trucks. In the far away shot the first fire engine overtakes her, then when it cuts back to her it's overtaking her again.

Continuity: When the train boss sacrifices himself by throwing the train driver over the lava flow, he only just manages to throw him past the flow. But in the following shots where it shows the other rescuers view of the lava flowing toward them, the position of them and the lava coming toward them mean they should be burnt by now.

Continuity: Just before the big earthquake, the subway train shown arriving at the Westlake/MacArthur Park station has the number 518 on the front door, however, the train that gets damaged during the earthquake has the number 526 on it.

Continuity: When Amy Barnes and Rachel are in the tunnel trying to find out what happened, Rachel falls in the crack of the tunnel, and Amy is thrown back. When it cuts to a different view, Amy Barnes falls or is thrown backwards, yet in the following shot when her hand slips from Rachel's, she falls back again. Also, when she is thrown back by the force, she is thrown back some distance, yet when the smoke subsides she is only about 1 or 2 feet from the crack in the tunnel.

Continuity: When Roark, Anne Heche and the other woman are in MacArthur Park, Roark walks away and Anne Heche is quite a few feet away from the other woman, but then she is right next to her without barely even moving. Also, when Anne Heche puts her hand on the woman's neck, in the following shot she is taking her hand away, and in the next shot she is taking her hand away again.

Continuity: When Dr. Jaye Calder is attending to the injured fireman on the road, Roark comes up and in one particular shot is near the fireman's side. In the following shot he is at the fireman's head, not at his side.

Continuity: At the end of the film, when Tommy Lee Jones steps out of the rubble with his daughter and the young boy, in one shot Tommy Lee Jones puts his hand around his daughter, in the following shot about 2 seconds later he puts his hand around her again.

Continuity: At the end when Emmit tells Roarke, "I could get used to this", he puts the cell phone up to his ear twice.

Continuity: Near the end, when the big black guy shake hands with the cop, the blonde haired cop standing next to him is looking to his right, yet in the following shot he is looking to his left.

Other: Just before the lava begins to flow, the glass in a building shatters and falls on Roark and the doctor but neither suffer so much as a cut.

Visible crew/equipment: When the train pulls into the station there is a shot of the train and there is a very clear reflection of a cameraman. This is not when they are filming a documentary about trains using the red line.

Continuity: When Roark has been seen looking for a radio, there is a bloke behind Emmit who has a headset on. The camera does an instant cut to the front and the headset has gone.

Revealing: When the woman dies during the major earthquake, the steam goes back into the hole perfectly. The steam's movement, which is unnatural, shows that they blew steam out of the crack and then ran the shot backwards.

Continuity: Just after Amy gets out of the drain, her fire suit is off her one shoulder and halfway between her shoulder and elbow. The camera cuts and it is back on her shoulder up to her neck instantly.

Other: At the end it starts to rain and everyone is covered in ash, soot, dust etc. However, after a few seconds of rain, all the ash, dust and soot have vanished off Roark, Kelly and Amy instantly.

Continuity: The severity of Kelly's wound to the face constantly changes. Some shots it's extremely red and raw, others it's only slightly red.

Continuity: Roark's car has the windscreen smashed and cracked by the volcanic ash. In some shots, mainly a distant shot of it being driven, there are no cracks in the windscreen.

Plot hole: When they are trying to find a way to stop the lava from going in to the museum, Tommy Lee Jones has an idea to push a bus up against the museum to divert the lava. The plan works but the lava does not melt the bus like it melted the Tommy Lee Jones' car or the fire truck. Even though the bus melts later in the movie, it doesn't melt it instantly like it did with the fire truck.

Other: Roark burns his hand on a hot frying pan and drops it to the floor. The dog then immediately wanders in to eat the spilled food. The pan should still be scorching hot after a short time, and yet the dog licks it.

Revealing: When the fireman goes to enter the fire truck that is on its side to rescue his friend, for whatever reason, the filmmakers sped up the film during his entry into the truck, it looks really out of place.