One extra wrinkle about a middle-of-the-night earthquake is that: a) Any flashlight on your nightstand may no longer be there after the shaking stops, and b) You may really need a light to walk around/over objects thrown to the floor. It's one thing to practice bugging out in the dark (excellent practice btw) but when things aren't where they are supposed to be, glass on the floor, bookcases knocked down, doors stuck in doorframes, a light is critical.

You may want to physically attach a light to your bedpost so that it can't get thrown into the darkness during an earthquake. Even tying a lowly Photon to the bedpost is fine, so that you can use it to find the bigger, brighter flashlight that got knocked off the nightstand. As Susan mentioned, she thought she knew where her flashlight was, but her cat unexpectedly moved it and she never did find it during a power outage.