Bay Area Seismic Retrofit: Did it Work in the South Napa Earthquake?

Napa_earthquake_damage_Goodman_library_URM_8_26_14_small After the magnitude 6.0 South Napa earthquake at 3 am on August 24th, two large historical buildings in downtown Napa were red-tagged and deemed unsafe because of falling debris onto the sidewalk. The falling bricks posed a life-safety risk, and we can only imagine the potential danger to pedestrians if the quake had occurred at 3 pm instead of 3 am. It is important to note that these two older buildings (“unreinforced masonry” buildings, or URM buildings) had previously been seismically retrofitted. Read more