Earthquakes are a significant [[natural disaster]] to [[population]]s living in areas prone to them, and emergency responses to the hazard vary with [[economic]] development. The most powerful and destructive earthquakes occur at tectonic plate boundaries like the [[San Andreas Fault]]. | Earthquakes are a significant [[natural disaster]] to [[population]]s living in areas prone to them, and emergency responses to the hazard vary with [[economic]] development. The most powerful and destructive earthquakes occur at tectonic plate boundaries like the [[San Andreas Fault]]. |