I have found that the small single AA Gerber Infinity Ultra is great for wondering around at night. The battery lasts a long time and the clip can be used to keep it in one place. I have one on the dresser (right in front of the clock) that I use regularly, but if stuff started falling, there's another clipped to a bag that's right at my feet as I get up. Also clipped to that bag is an RSK (you never know). Boots with socks are just to the left of the bag between the bed and wall, within reach of me sitting on the bed. After a major earthquake I'd grab the light and do a quick check before I got up, if it's clear I'd grab my jeans (which still have a knife clipped to the pocket) put on the boots (rather than the cross trainers I'd normally wear) and then whatever shirt, sweater felt appropriate for the weather.

If it's just an earthquake and everything is still standing, there's no reason to evacuate, the damage is done. If bugging out is still the goal, I'd finish loading the pockets, grab a couple critical bags (a couple items I don't store in the truck) and drive away. I keep gear in the truck 24/7 so packing is not a time consuming project. I can't imagine what would make me drive away on a moments notice, other than a nuc, and then the question of where you gonna go comes up.