
iOS 5 features an overhauled notification system, which aims to both be unobtrusive and more informative, which shows the latest notifications from various apps. There's a special notification that will only be available for Japanese users, and it is a native early earthquake warning system for the most earthquake-prone nation on Earth built in the notification panel in iOS 5.
This service doesn?t predict but rather quickly informs users when an earthquake has already happened. This will give Japanese users, up to a minute or even two to react to the approaching earthquake. The warning system will be implemented as a switch, which will allow users to easily toggle it on or off.