Leave. If you live in such an area it would be a way of life. You probably have a spare toothbrush at someone else's house already. Unless you have a bunker or something that is considered safe.
Used to live near Japan, in a 5-story concrete building. We had so many earthquakes, the things were getting thrown off the shelves multiple times a year. There is nowhere to leave for a week. And there is a very slim chance anything would collapse, because the buildings are specifically built to withstand up to around 9 richter.
