There are multiple cities across the west coast that are being proactive about reducing their seismic risk. 

An unreinforced masonry (URM) building is a building made of brick, hollow concrete blocks, stone, or other masonry with no steel reinforcing bars embedded in it, making it susceptible to severe damage and collapse during an earthquake.

Non-ductile concrete buildings are structures that contain brittle concrete elements (columns, beams, walls, and connections) that tend to perform poorly during earthquakes due to the limited amount of provided reinforcing steel.