Earthquake Early Warning (EEW) systems are designed to detect seismic activity and provide alerts before the shaking reaches a location. These systems use a network of sensors to identify the initial, less-damaging waves of an earthquake, known as P-waves, which travel faster than the more destructive waves, called S-waves. When an earthquake is detected, the system sends alerts to people and organizations in the affected area, giving them valuable seconds to take protective actions. This can help reduce injuries and damage by allowing individuals to drop, cover, and hold on, or for automated systems to shut down critical infrastructure like gas lines and power plants.