Facebook has made checking that you loved ones safe during a catastrophe a lot easier with the roll out of a dedicated tab for the safety check feature.
The way the world is at the moment, this seems like more of a necessity than ever. If you find the sheer scale of terrorist activity and natural disasters a little overwhelming, I suggest you do not visit the tab unless needed. It is a collection of some of the horrific things that are happening right now around the world.
Before now, the only way to check in on if people were safe was to either see them in your news feed or, to mark yourself as safe.
The feature can be a little hard to find (on mobile you have to go to the far right screen and scroll till you find it listed) and the only indication we have had as to when it will be fully available is “A few weeks”.