this movie be a great movie only if you need something to sit and laugh at the stupidity of it . a a geologist this movie get most of the important fact wrong and use actor that be too young to even be consider in the top of their field . it be interest how it show spurt lava in massive cavern below the earth surface . it also be funny how seismically active area be show to have massive destruction from a 6 . 5 magnitude earthquake . they seem to forget the building standard in these area would be high need a big quake to do this much damage . also it be funny how much they make the coast line of washington state and also oregon to look a though they be nice beach of southern california . the jelly donut analogy be very entertaining even if the way it be use be wrong . the director do a good job of add more comic relief with the 2 supossed phd .