Watching a movie requires viewers to suspend their disbelief, and this movie has much to disbelieve. We can talk about the unoriginal story, cookie-cutter characters, stiff acting, and phony science, but what's the point? A movie is worth your time if it entertains, and "Earthstorm" succeeds at least in doing that, so let's look at what this film gives us to enjoy.
First, the special effects are not bad. People tend to confuse the "how" with the "what" when judging special effects so that the effects often get the blame for low plausibility. In this film, though, "how" they show is credible even if "what" they show is not.
Second, the music is quite good. It sustains tension throughout the film and adds emotional content at key points--exactly what it a movie score supposed to do.
Third, the acting is adequate. This isn't a film by Cameron, Kubrick, or Crichton, so let's cut the cast some slack. I've never met any demolition experts, but I bet they're more like Stephen Baldwin in "Earthstorm" than like Bruce Willis in "Armageddon". And seeing Dirk Benedict ("Faceman" from the 1980s TV series "The A-Team") as the smug, self-important science advisor to The White House is a treat.
Best of all is the film's message. More-realistic sci-fi movies such as "Alien", "Europa Report", "Gravity", and "The Martian" tell us that space exploration is dangerous and largely unnecessary as if filmmakers want us to stay on our home planet. "Earthstorm" has a positive message: The more we know about space, the better prepared we are to protect life on earth.
Sci-fi has come a long way from the 1950s, but anyone who admires "The Day the Earth Stood Still" has no excuse for disliking this movie.