While setting the charges, Boomer calls the nearby vehicle a Humvee. It is an out-of-date three-quarter ton truck, not a Humvee.
While blowing the charges in the climax scene, Boomer says "3 down, 15 to go". Over the next few minutes, 59 isolated visible explosions occur as he drives by the detonators.
When the avalanche hits Vail, shots of the general public running away from the mountain are used over and over again. As such you see the man in the blue baseball cap start to run three times and the man with the cream cowboy hat twice.
When the spruce tree crashes into the house, you can see that it cuts straight across the house from side to side, yet when the tree is shown from the inside, it is falling from the front of the house. You can see the plastic fern fronds they used to build the spruce with.
While driving the tractor trailer to Denver, the pipeline on the side of the road disappears and reappears numerous times.
The pin on a tractor trailer can't be pulled while moving. The cab has to back up slightly to release the pressure on it in order to be able to pull the pin.
The tractor trailer is supposed to be hauling fuel, but has 3 chambers that taper at the bottom. It is most likely a grain trailer.
A C-130 out of Bolling Air Force Base is requested to take Dan & Miranda Lane back home to Colorado from DC. Bolling AFB stopped flying aircraft in the 1960s. The old runways actually became part of the base's system of streets.
When they are flying in the Osprey, you can clearly see a regular home type garage door that they are sitting against.
The "Tectonic Weapon" satellite was supposedly aimed at an uninhabited area, however farmhouses are visible in many of the external shots.
Why would a construction pick-up truck which works for a quarry, be only two wheel drive? Also, many of these same trucks have dried mud splashed on them as if someone had used a paint-ball gun to dirty the vehicles.
In one of the indoor scenes mentioned as shot in an Air Force base, approximately 1 hour into the movie, you can see two military guards standing at their post at each side of the entrance. If you look closely enough, you'll see that they are mannequins.
Every wheeled military vehicle in this movie was fifteen to twenty years out of date and no longer used. This is odd, considering that all of the aircraft were modern equipment.
While setting the charges in the mines, all military personnel are dressed in what is obviously army surplus uniforms. There are no name badges, ranks, or even branch designation - only macro-pattern camo (current military BDUs utilize digicam, or digital camo pattern).
Lexington, Kentucky does not have a river running through it.
The holographic map showing the quake running across the US has the quake going through Kentucky up north around Covington near the Ohio border. Lexington is in the center of the state.
West Virginia mountains are not craggy as shown at the beginning of the movie.
When they are driving and starting the explosions, you see that they have had 5 explosions, then she asks how many have exploded and he replies 3, even though they have been blowing off right behind the truck.