As dumb as anything Hollywood might have made. Couldn't finish it.
I made it to about the halfway point, a few minutes after the wave. Wow is this movie stupid. Not only does the wave look nothing like an actual tsunami, which would simply be a large swell of water until it hits the shore, but the logic of surviving one in a car or in a bomb shelter? Jesus Christ. The filmmakers couldn't have done even the slightest bit of research. So I looked up the ending on Wikipedia, and it apparently gets even worse.
This wouldn't be such an issue if this weren't played up as an intelligent disaster movie. It's just as bad as every moronic thing out of Hollywood. Kinda sad I wasted about an hour of my life on this tripe. Oh well.