It's actually not as bad as it could have been. There are no reports of anyone dying, which is really, really good. There are some damaged/unlivable buildings, and the power's mostly out, and the water and sewage is totally fucked, but it'll probably be back on within a couple of days.
We've had a total of two earthquakes in my lifetime (and pretty much ever), and they've been like... 3.something. Really little. I couldn't imagine one that big...
We're sorta used to quakes. I woke up to the shaking, but it wasn't all that bad here. My bed moved away from the wall about 5 cm, and the house creaked a bit.
Seismic activity in North America is mostly limited to the West Coast, along the... whatever the fuck it's called fault where the main North American plate smashes into the little plates in the northwest and the big Pacific plate.
Thus, California has a shitton of quakes, and unless we get something crazy like the quake that happened in Mississippi in the 19th century, Colorado never will.