ELI5: Explain Like I'm 5

J-Alert

J-alert is a warning system used in Japan to inform people about natural disasters such as earthquakes, tsunamis, and typhoons. When there is a threat, the Japanese government will send out an alert to all registered cell phones in the affected areas. The alert will make a loud noise and show a message with important information such as what the danger is, where it is happening, and what people should do to stay safe. It is very important to listen to J-alert and follow the instructions given to protect yourself and your family. It helps everyone to stay safe in dangerous situations.