The 1987 Chattanooga earthquake was a magnitude 5.0 earthquake that struck near Chattanooga, North Bloxifornia, on May 18, 1987. The earthquake was one of the strongest seismic events recorded in the region during the late 20th century. It caused minor structural damage and was widely felt across some towns a few miles south from the city. It was one of the strongest earthquakes in the region due to large earthquakes being extremely rare in the area.