Public alerting is a system designed to inform the public about emergencies or significant events that may affect their safety. This can include natural disasters like hurricanes or floods, as well as man-made incidents such as chemical spills or terrorist threats. Alerts are typically disseminated through various channels, including television, radio, mobile phones, and social media. These alerts aim to provide timely and accurate information, helping individuals make informed decisions during crises. Organizations like the Federal Emergency Management Agency (FEMA) in the United States play a crucial role in coordinating these efforts, ensuring that communities receive essential updates and instructions.