Given that the most likely way to suffer harm in an earthquake is for something to fall on top of you, that sounds like an incentive to spend as much time outside as possible*. Can't speak for muggers.
(* - providing it's not on or underneath a steep slope which might become a landslide, or on a tsunami-prone coast).
Part of me wonders if there's ever been a significant earthquake during an event anywhere. The 1989 Newcastle earthquake happened during one of the days of the Christmas 5-Days but the event was far enough from the epicentre (North Stockton dunes) that I think it was only slightly felt there.
It was pretty much during control collection time. rockman and junior were just crossing Stockton Bridge and thought the bump was a pothole until he saw the clouds emanating from BHP (automatic release) and then elsewhere dust plumes as buildings collapsed.