According to a Japanese iPhone user who tipped off 9to5mac earlier today, iOS 5 (in Japan) includes an early earthquake warning notifications. According to the tipster, Japanese iPhone users can turn on this option at the very bottom of the iOS 5 Notification Center settings panel.



This new system from Apple in iOS 5 gives warnings before an earthquake happens by seconds to one or two minutes.

In the screenshot above, it’s written that the system may reduce your battery life as it must connect your iPhone Japan’s earthquake warning system all the time.
It looks like Apple really cares for safety of those iPhone users in Japan.
Good Effort Apple...