Sometimes when disaster strikes even we are safe, we can’t tell it to our relatives who lives far away. Because most of the time when there is a disaster the entire signal went dead.
Just check the notifications if it looks like you are near the disaster FB will ask if you are safe. Click tap if you are okay to let your friends or relative know that you are okay.
Then check on others who may be affected by the disaster.
This new tool works if you send notifications to your gadget or device when you are in hazardous area. It will determine your location through cities listed, your location and nearby friend and the internet connections that you are connected from.