A fan mounting system (30) may include supplemental mounting components for installations where fan (10) will be located in a geographic region that encounters frequent seismic activity. These supplemental components may provide additional reinforcement and stability to fan (10), enabling fan (10) to remain secured to a ceiling or other structure during seismic events. Such a supplemental system may comprise cables (410) extending between and connecting the fan (10) to structures, such as ceiling joists (450). Related methods are also disclosed.