Historically, one of the weapons of civil unrest is fire. In the case of fire moving through a highly-populated area, bugging out would be a distinct possibility, so being able to grab some pre-gathered supplies and having a place to run to would be a high priority to me.

In the case of an earthquake, you could be in a real tight spot. Earthquakes often make travel difficult or impossible, you're in competition with a lot of other people, law breaks down in many cases, and there is always the added difficulty of fire due to broken gas mains and plain carelessness.

I would plan for both escape and hunkering down, and be aware of conditions that would cause you to change from one plan to another. Never get locked into just one plan; when conditions change, you must, also.

Sue